| MA BANLIEUE FLASQUE | MA BANLIEUE FLASQUE | 1979 | FRA | CD |
| MAAD | MAAD | 1975 | ITA | CD |
| MACHIAVEL | FIRST RECORDINGS | 1976 | BEL | DT |
| MACHIAVEL | MACHIAVEL | 1976 | BEL | CD |
| MACHIAVEL | JESTER | 1977 | BEL | LP |
| MACHIAVEL | MECHANICAL MOONBEAMS | 1978 | BEL | CD |
| MACHIAVEL | URBAN GAMES | 1979 | BEL | LP |
| MACHIAVEL | VIRTUAL SUN | 1999 | BEL | CD |
| MACHINA COELI | FINITOR VISUS NOSTRI | 1999 | ITA | CD |
| MACHINE FOR MAKING SENSE | ON SECOND THOUTHTS | 1995 | AUS | CD |
| MACIUNAS ENSEMBLE | MUSIC FOR EVERYMAN | 1986 | HOL | LP |
| DUNCAN MACKAY | CHIMERA | 1974 | | CD |
| RUTH MACKENZIE | KALEVALA | 1998 | USA | CD |
| MACKENZIE THEORY | OUT OF THE BLUE | 1973 | AUS | HC |
| STEVE MACLEAN ENSEMBLE | THE OPPOSITE OF WAR | 2000 | USA | CD |
| MACROMASSA | EL CONCIERTO PARA IR EN GLOBO | 1979 | SPA | HC |
| MACROMASSA | ESPEJO RAPIDISIMO QINGEN | 1988 | SPA | CD |
| MACROMASSA | UM-YU | 1995 | SPA | CD |
| MAD CRAYON | ULTIMO MIRAGGIO | 1994 | ITA | CD |
| MAD CRAYON | DIAMANTI | 1999 | ITA | CD |
| MAD CURRY | MAD CURRY | 1970 | BEL | HC |
| MAD RIVER | MAD RIVER | 1968 | USA | CD |
| MAD RIVER | PARADISE BAR AND GRILL | 1969 | USA | CD |
| MADDEN AND HARRIS | FOOLS PARADISE | 1973 | AUS | CD |
| MIKE MADDEN | MILLENIUM MASH 1998 | 1998 | USA | CD |
| MIKE MADDEN | METALLIC LIMITS | 1999 | USA | CD |
| MADISON DYKE | ZEITMASCHINE | 1977 | GER | LP |
| MADNESS | KEEP MOVING | 1984 | UK | LP |
| MADONNA | Lucky Star/ I Know It | 1983 | USA | SP |
| MADONNA | Crazy For You/ (BERLIN) No More Words | 1985 | USA | SP |
| MADONNA | Live To Tell/ (Instrumental) | 1986 | USA | SP |
| MADONNA | True Blue/ Ain't no Big Deal | 1986 | USA | SP |
| MICHEL MADORE | LE KOMUSO A CORDES | 1976 | CAN | HC |
| MICHEL MADORE | LA CHAMBRE NUPTIALE | 1979 | CAN | HC |
| MADPUPPET | MASQUE | 1982 | ITA | CD |
| MADPUPPET | KING LAURIN AND HIS ROSEGARDEN | 1994 | GER | CD |
| MADRIGAL | ON MY HANDS... | 1996 | USA | CD |
| MADS ERIKSON | SUBURBAN COW BOY | 1997 | SWE | CD |
| MAELSTROM | MAELSTROM | 1973 | USA | CD |
| JACKY MAESTRACCI | SYMPHONIA | 1996 | FRA | CD |
| MAGDALENA | LANEAN SARTZEN | 1981 | SPA | HC |
| MAGDALENA | MAGDALENA | 1986 | JAP | CD |
| MAGELLAN | HOUR OF RESTORATION | 1991 | USA | CD |
| MAGELLAN | IMPENDING ASCENSION | 1994 | USA | CD |
| MAGELLAN | TEST OF WILLS | 1997 | USA | CD |
| MAGENTA | REVOLUTIONS | 2001 | UK | CD |
| THE MAGIC CARPATHIANS | ETHNOCORE 2:NYTU | 2000 | POL | CD |
| MAGIC CARPET | MAGIC CARPET | 1971 | | HC |
| THE MAGIC ELF | ELF TALES | 1998 | USA | CD |
| THE MAGIC ELF | LIVE | 1999 | USA | CD |
| MAGIC MUSHROOM BAND | THE SPACED COLLECTION | 1997 | UK | CD |
| MAGICAL POWER MAKO | MAGICAL POWER | 1973 | JAP | CD |
| MAGICAL POWER MAKO | SUPER RECORD | 1975 | JAP | CD |
| MAGICAL POWER MAKO | MUSIC FROM HEAVEN | 1982 | JAP | CD |
| MAGICAL POWER MAKO | HAPPY EARTH | 1993 | JAP | CD |
| MAGICAL POWER MAKO | NEXT MILLENIUM VIBRATIONS | 1994 | JAP | CD |
| MAGICAL POWER MAKO | TRANCE RESONANCE | 1994 | JAP | CD |
| MAGICAL POWER MAKO | LO POP DIAMONDS | 1995 | JAP | CD |
| MAGICAL POWER MAKO | BLUE DOT | 1996 | JAP | CD |
| MAGICAL POWER MAKO | MAGIC | 2000 | JAP | CD |
| MAGMA | MAGMA | 1970 | FRA | CD |
| MAGMA | Nau Ektila (Demo) | 1970 | FRA | HC |
| MAGMA | 1001ø CENTIGRADES | 1971 | FRA | CD |
| MAGMA | BRUXELLES 1971 - THEATRE 140 | 1971 | FRA | CD |
| MAGMA | Hamtaak / | 1972 | FRA | DT |
| MAGMA | METZ - 3/12/72 (LIVE) | 1972 | FRA | HC |
| MAGMA | MEKANIK KOMMANDOH | 1973 | FRA | CD |
| MAGMA | MEKANIK DESTRUKTIW KOMMANDOH | 1973 | FRA | CD |
| MAGMA | BBC 1974 LONDRES | 1974 | FRA | CD |
| MAGMA | BREMEN/RADIO F - 2/6/74 (LIVE) | 1974 | FRA | HC |
| MAGMA | HALLELUJAH | 1974 | FRA | CD |
| MAGMA | Mekanik Machine / | 1974 | FRA | DT |
| MAGMA | BRUSSELS - 2/14/74 (LIVE) | 1974 | FRA | HC |
| MAGMA | BBC RADIO - 3/14/74 (LIVE) | 1974 | FRA | DT |
| MAGMA | KOHNTARKOSZ | 1974 | FRA | CD |
| MAGMA | BBC - 12/3/74 (LIVE) | 1974 | FRA | HC |
| MAGMA | Hhai / Lihns (La Pluie) | 1975 | FRA | DT |
| MAGMA | LIVE (HHAI) | 1975 | FRA | CD |
| MAGMA | THEATRE DU TAUR - CONCERT 1975 TOULOUSE | 1975 | FRA | CD |
| MAGMA | ANTIBES - 10/9/76 (LIVE) | 1976 | FRA | DT |
| MAGMA | CARMAUX - 10/16/76 (LIVE) | 1976 | FRA | HC |
| MAGMA | LA MUSIQUE DE SPHERES | 1976 | FRA | CD |
| MAGMA | LIVE PARIS - 1/1/76 | 1976 | FRA | HC |
| MAGMA | LIVE PARIS - 1/16/76 | 1976 | FRA | HC |
| MAGMA | MEKANIK ZEUHL WORTZ | 1976 | FRA | CD |
| MAGMA | PARIS - 11/7/76 (LIVE) | 1976 | FRA | DT |
| MAGMA | REIMS - 3/2/76 (LIVE) | 1976 | FRA | DT |
| MAGMA | THEUSZ HAMTAAHK | 1976 | FRA | CD |
| MAGMA | UDU WUDU | 1976 | FRA | CD |
| MAGMA | LIVE - PARIS 1977 DE FUTURA | 1977 | FRA | HC |
| MAGMA | ORLEANS - 6/22/77 (LIVE) | 1977 | FRA | HC |
| MAGMA | ROMBAS - 4/2/77 (LIVE) | 1977 | FRA | DT |
| MAGMA | FREJUS - 7/21/77 (LIVE) | 1977 | FRA | HC |
| MAGMA | INEDITS | 1977 | FRA | CD |
| MAGMA | ATTAHK | 1977 | FRA | CD |
| MAGMA | BINCHE - 11/4/78 (LIVE) | 1978 | FRA | DT |
| MAGMA | LIVE - REIMS 1978 | 1978 | FRA | HC |
| MAGMA | LYON - 11/21/78 (LIVE) | 1978 | FRA | DT |
| MAGMA | NANCY - 3/21/79 (LIVE) | 1979 | FRA | HC |
| MAGMA | RETROSPEKTIW III | 1980 | FRA | CD |
| MAGMA | RETROSPEKTIW I - II | 1981 | FRA | CD |
| MAGMA | CONCERT - BOBINO 1981 | 1981 | FRA | CD |
| MAGMA | MERCI | 1984 | FRA | CD |
| MAGMA | MYTHES ET LEGENDES, VOL.1 | 1985 | FRA | CD |
| MAGMA | LES VOIX - BORDEAUX 12/5/90 (LIVE) | 1990 | FRA | HC |
| MAGMA | LES VOIX | 1992 | FRA | CD |
| MAGMA | LIVE - EPINAY 1995 | 1995 | FRA | HC |
| MAGMA | KOMPILA | 1997 | FRA | CD |
| MAGMA | LIVE IN JAPAN 1998 | 1998 | FRA | CD |
| MAGMA | SIMPLES | 1998 | FRA | CD |
| MAGMA | Floe Essi/Ektah | 1999 | FRA | CD |
| MAGMA | SAN FRANCISCO IPMF 5/30/99 (LIVE) | 1999 | FRA | CD |
| MAGMA | THEUSZ HAMTAAHK TRILOGIE | 2000 | FRA | CD |
| MAGMA | CANTO PARA UNA CONSAGRACION | 1982 | ARG | CD |
| MAGMA | LA TRANSFORMACION | 1985 | ARG | CD |
| MAGNESIS | ABSINTHEISME | 1995 | FRA | CD |
| MAGNITUDE 9 | REALITY IN FOCUS | 2000 | USA | CD |
| MAGNUM | PROGRESSIVE CLASSICS | 1999 | | CD |
| MAGUS | TRAVELLER | 1997 | USA | CD |
| MAGUS | ECHOES FROM THE EDGE OF THE MILLENIUM | 1999 | USA | CD |
| MAGUS | HIGHWAY 375 | 1999 | USA | CD |
| MAGUS | THE GREEN EARTH | 2001 | USA | CD |
| ANAND MAHANGOE | A MAN'S MIND | 1999 | HUN | CD |
| MAHAVISHNU ORCHESTRA | THE INNER MOUNTING FLAME | 1972 | USA | CD |
| MAHAVISHNU ORCHESTRA | BIRDS OF FIRE | 1973 | USA | CD |
| MAHJUN | MAHJUN | 1974 | FRA | HC |
| MAHJUN | HAPPY FRENCH BAND | 1977 | FRA | HC |
| MAHL DYNASTY | BORDERLINE | 1991 | CAN | CD |
| MAHOGANY RUSH | MAXOOM | 1973 | USA | CD |
| MAHOGANY RUSH | CHILD OF THE NOVELTY | 1974 | USA | CD |
| MAHOGANY RUSH | STRANGE UNIVERSE | 1975 | USA | CD |
| MAHOGANY RUSH | MAHOGANY RUSH IV | 1976 | USA | CD |
| FRANK MARINO & MAHOGANY RUSH | WORLD ANTHEM | 1977 | USA | CD |
| FRANK MARINO & MAHOGANY RUSH | DOUBLE LIVE | 1988 | USA | CD |
| FRANK MARINO & MAHOGANY RUSH | EYE OF THE STORM | 2001 | USA | CD |
| MAHOUJIN | BABYLONIA SUITE | 1978 | JAP | CD |
| MAKAM ES KOLINDA | SZELCSEND UTAN | 1984 | HUN | HC |
| MAL | MEMORY OVERFLOW | 1997 | USA | CD |
| LES MALEDICTUS SOUND | ATTENTION | 1968 | FRA | CD |
| MALHERBE EHRLICH SHEHAN | SHAMANIMAL | 1999 | FRA | CD |
| MALIBRAN | THE WOOD OF TALES | 1990 | ITA | CD |
| MALIBRAN | LE PORTE DEL SILENZIO | 1993 | ITA | DT |
| MALIBRAN | LA CITTA SUL LAGO | 1998 | ITA | CD |
| MALIBRAN | IN CONCERTO | 1999 | ITA | CD |
| MALIBRAN | OLTRE L'IGNOTO | 2001 | ITA | CD |
| MALICORNE | MALICORNE | 1974 | FRA | HC |
| MALICORNE | MALICORNE (5) | 1977 | FRA | HC |
| MALICORNE | EN PUBLIC AUX MONTREAL | 1978 | FRA | HC |
| MALICORNE | QUINTESSENCE | 1978 | FRA | HC |
| MALOMBRA | MALOMBRA | 1993 | ITA | CD |
| MALOMBRA | OUR LADY OF THE BONES | 1996 | ITA | CD |
| MALSTROM | I OF THE STORM | 1998 | USA | CD |
| THE MAMAS AND THE PAPAS | THE ABC COLLECTION | 1976 | USA | LP |
| MAN JUMPING | JUMP CUT | 1985 | UK | CD |
| MAN ON FIRE | MAN ON FIRE | 1998 | USA | CD |
| MAN ON FIRE | LIMITED EDITION SAMPLER | 2001 | USA | CD |
| HARVEY MANDEL | CRISTO REDENTOR | 1968 | USA | CD |
| HARVEY MANDEL | RIGHTEOUS | 1969 | USA | LP |
| HARVEY MANDEL | BABY BATTER | 1971 | USA | CD |
| HARVEY MANDEL | THE SNAKE | 1972 | USA | CD |
| HARVEY MANDEL | TWIST CITY | 1993 | USA | CD |
| HARVEY MANDEL | THE MERCURY YEARS | 1995 | USA | CD |
| MANDIR | OUT BEYOND IDEAS | 1998 | USA | CD |
| MANDRAGORA | PECADO TRAS PECADO | 1993 | BRA | CD |
| MANDRAGORE | A REVIVRE LE FUTUR... | 1990 | FRA | LP |
| MANEIGE | LIVE MONTREAL 1974/1975 | 1974 | CAN | CD |
| MANEIGE | MANEIGE | 1975 | CAN | LP |
| MANEIGE | LES PORCHES | 1975 | CAN | LP |
| MANEIGE | NI VENT...NI NOUVELLE | 1977 | CAN | CD |
| MANEIGE | LIBRE SERVICE | 1978 | CAN | CD |
| MANEIGE | COMPOSITE | 1979 | CAN | LP |
| MANEIGE | MONTREAL 6AM | 1980 | CAN | LP |
| MANEIGE | IMAGES | 1983 | CAN | LP |
| THE MANHATTAN TRANSFER | LIVE | 1978 | USA | HC |
| THE MANHATTAN TRANSFER | THE BEST OF MANHATTAN TRANSFER | 1981 | USA | LP |
| THE MANHATTAN TRANSFER | LIVE | 1987 | USA | HC |
| THE MANHATTANS | You Send Me/Youre gonna love being loved | 1985 | USA | SP |
| BARRY MANILOW | THE BEST OF BARRY MANILOW | 1984 | UK | PC |
| GEOFF MANN | I MAY SING GRACE | 1984 | UK | DT |
| GEOFF MANN | PSALM ENCHANTED EVENING | 1985 | UK | DT |
| GEOFF MANN | SECOND CHANTS | 1992 | UK | CD |
| MANFRED MANN | CHAPTER THREE | 1969 | UK | CD |
| MANFRED MANN | CHAPTER THREE,VOLUME TWO | 1970 | UK | CD |
| MANOEUVRES D'AUTOMNE | UN PEU D'AIR! | 1994 | SUI | CD |
| MICHAEL MANRING | THONK | 1994 | USA | CD |
| MICHAEL MANRING | THE BOOK OF FLAME | 1998 | USA | CD |
| LA MANSION | WHERE DREAMS LIE... | 1997 | MEX | CD |
| MANTICORE | TIME TO FLY | 1994 | SWE | CD |
| MANY BRIGHT THINGS | MANY BRIGHT THINGS | 1998 | USA | CD |
| PHIL MANZANERA | DIAMOND HEAD | 1975 | UK | CD |
| PHIL MANZANERA/801 | LISTEN NOW | 1977 | UK | CD |
| LA MAQUINA DE HACER PAJAROS | LA MAQUINA DE HACER PAJAROS | 1972 | ARG | CD |
| ALEXANDRE MARASLIS | SPIRITUAL AWAKENING | 2000 | BRA | CD |
| MARATHON | IMPOSSIBLE IS POSSIBLE | 1993 | ITA | CD |
| MARATHON | SUBLIME DREAMS | 1994 | ITA | CD |
| MARBLE SHEEP | STONE MARBY | 2001 | JAP | CD |
| ADRIAN MARCATOR | EIDERLAND SUITE | 1992 | GER | CD |
| CHRISTIAN MARCLAY | MORE ENCORES | 1988 | UK | CD |
| MARCO | MARCONCEPTOS | 1994 | MEX | CD |
| ALBERT MARCOEUR | ALBERT MARCOEUR | 1974 | FRA | CD |
| ALBERT MARCOEUR | ALBUM A COLORIER | 1976 | FRA | CD |
| ALBERT MARCOEUR | TAGO MAGO | 1978 | FRA | DT |
| ALBERT MARCOEUR | ARMES & CYCLES | 1979 | FRA | CD |
| ALBERT MARCOEUR | CELUI OU Y'A JOSEPH | 1984 | FRA | CD |
| ALBERT MARCOEUR | (M,A,R,ET COEUR COMME COEUR) | 1998 | FRA | CD |
| MARFUZ | ULTIMO ECLIPSE | 2000 | ARG | CD |
| MARGE LITCH | THE RING OF TRUTH | 1992 | JAP | CD |
| MARGE LITCH | CRYSTAL HEART IN THE FOUNTAIN | 1995 | JAP | CD |
| MARGE LITCH | FANTASIEN 1998 | 1998 | JAP | CD |
| MARIA | MARIA | 1976 | JAP | DT |
| MARILLION | MARKET SQUARE HEROES | 1982 | UK | EP |
| MARILLION | SCRIPT FOR A JESTER'S TEAR | 1983 | UK | CD |
| MARILLION | He Knows You Know/ Charting The Single | 1983 | UK | SP |
| MARILLION | FUGAZI | 1984 | UK | CD |
| MARILLION | REAL TO REEL | 1984 | UK | CD |
| MARILLION | Punch & Judy/Market Square/Three Boats.. | 1984 | UK | SP |
| MARILLION | Lavender Blue/ Freaks/ Lavender | 1985 | UK | SP |
| MARILLION | MISPLACED CHILDHOOD | 1985 | UK | CD |
| MARILLION | BRIEF ENCOUNTER | 1986 | UK | LP |
| MARILLION | REAL TO REEL/BRIEF ENCOUNTER | 1986 | UK | CD |
| MARILLION | CLUTCHING AT STRAWS | 1987 | UK | CD |
| MARILLION | Sugar Mice/ Tux On | 1987 | UK | SP |
| MARILLION | B'SIDES THEMSELVES | 1988 | UK | CD |
| MARILLION | LA GAZZA LADRA ( THE THIEVING MAGPIE ) | 1988 | UK | CD |
| MARILLION | SEASONS END | 1989 | UK | CD |
| MARILLION | UNINVITED GUEST | 1989 | UK | CD |
| MARILLION | Easter/The Release/Uninvited Guest(Live) | 1990 | UK | CD |
| MARILLION | Dry Land / Holloway Girl (Picture Disc) | 1991 | UK | EP |
| MARILLION | Dry Land / Waiting to Happen / Easter / | 1991 | UK | EP |
| MARILLION | HOLIDAYS IN EDEN | 1991 | UK | CD |
| MARILLION | No One Can / A Collection / Splintering | 1991 | UK | CD |
| MARILLION | SIX OF ONE, HALF DOZEN OF THE OTHER | 1992 | UK | CD |
| MARILLION | BRAVE | 1994 | UK | CD |
| MARILLION | THIS STRANGE ENGINE | 1997 | UK | CD |
| MARILLION | RADIATION | 1998 | UK | CD |
| MARILLION | MARILLION.COM | 1999 | UK | CD |
| MARILLION | ANORAKNOPHOBIA | 2001 | UK | CD |
| MARILLION & THE POSITIVE LIGHT | TALES FROM THE ENGINE ROOM | 1998 | UK | CD |
| MARK 1 | ABSOLUTE ZERO | 2001 | USA | CD |
| MARK 1 | THE CRIMINAL ELEMENT | 2001 | USA | CD |
| MARK-ALMOND | THE BEST OF MARK-ALMOND | 1980 | UK | LP |
| ALAIN MARKUSFELD | LE MONDE EN ETAGES | 1970 | FRA | CD |
| ALAIN MARKUSFELD | LE SON TOMBE DU CIEL | 1971 | FRA | CD |
| ALAIN MARKUSFELD | LE DESERT NOIR | 1977 | FRA | LP |
| ALAIN MARKUSFELD | LE DESERT NOIR/PLATOCK | 1977 | FRA | CD |
| ALAIN MARKUSFELD | PLATOCK | 1978 | FRA | LP |
| ALAIN MARKUSFELD | CONTEMPORUS | 1979 | FRA | LP |
| ALAIN MARKUSFELD | LIVE | 1981 | FRA | HC |
| BOB MARLEY | GREATEST HITS OF BOB MARLEY | 1975 | USA | LP |
| MARS EVERYWHERE | VISITOR PARKING | 1976 | USA | HC |
| MARS EVERYWHERE | INDUSTRIAL SABOTAGE | 1980 | USA | CD |
| MARS EVERYWHERE | LIVE & UNREHEARSED 1978-79-80 | 1980 | USA | PC |
| MARSH FRANKLIN CROWTHER | SHELL OF CERTAINTY | 1999 | UK | CD |
| MARSUPILAMI | MARSUPILAMI | 1970 | UK | HC |
| MARSUPILAMI | ARENA | 1971 | UK | HC |
| ISTVAN MARTHA | THE WIND RISES | 1998 | HUN | CD |
| MARTIN CIRCUS | ACTE II | 1971 | FRA | HC |
| DEBORAH MARTIN | UNDER THE MOON | 1995 | USA | CD |
| DEBORAH MARTIN | DEEP ROOTS,HIDDEN WATER | 1999 | USA | CD |
| JOHN MARTYN | WELL KEPT SECRET | 1982 | IRE | LP |
| JASUN MARTZ | THE PILLORY | 1978 | USA | CD |
| MARY NEWSLETTER | NUOVE LETTERE | 1996 | ITA | CD |
| MARY NEWSLETTER | DISTRATTO DAL SOLE | 1998 | ITA | CD |
| MARY NEWSLETTER | DEL PERDUTO CORAGGIO | 2000 | ITA | CD |
| MARYSON | MASTER MAGICAN 1 | 1996 | HOL | CD |
| MARYSON | ON GOES THE QUEST | 1998 | HOL | CD |
| MASCARADA | URBAN NAMES | 1999 | SPA | CD |
| MASFEL | CHINESE FLU | 1995 | HUN | CD |
| MASFEL | VIPERAGARZON | 1996 | HUN | CD |
| MASFEL | KATASZTROFAMAMOR | 1998 | HUN | CD |
| MASFEL | ANGYALTOJAS | 2000 | HUN | CD |
| THE MASKIT CHAMBER | HEAVEN MACHINE | 2001 | USA | CD |
| THE MASKIT CHAMBER | THE 4TH WAVE | 2001 | USA | CD |
| NICK MASON | FICTITIOUS SPORTS | 1981 | UK | HC |
| MASQUE | FLESH THAT UNDERSTANDS | 1991 | SWE | CD |
| MASQUE | TEN WAYS | 1994 | SWE | CD |
| MASQUE | THIRD EAR-THIRD EYE | 1997 | JAP | CD |
| MASSACRE | REIMS, FRANCE 4/81 | 1981 | FRA | DT |
| MASSACRE | KILLING TIME | 1983 | UK | CD |
| MASSEY CASTIGLIONE TORN | FOREVER SHARP & VIVID | 1998 | USA | CD |
| MASTER CYLINDER | ELSEWHERE | 1980 | USA | CD |
| MASTERMIND | VOLUME ONE | 1987 | USA | CD |
| MASTERMIND | VOLUME TWO: BRAINSTORM | 1991 | USA | CD |
| MASTERMIND | III - TRAGIC SYMPHONY | 1994 | USA | CD |
| MASTERMIND | IV - UNTIL ETERNITY | 1996 | USA | CD |
| MASTERMIND | LIVE IN TOKYO | 1997 | USA | CD |
| MASTERMIND | EXCELSIOR! | 1998 | USA | CD |
| MASTERMIND | ANGELS OF THE APOCALYPSE | 2000 | USA | CD |
| MASTERMIND | PROG,FUSION,METAL,LEATHER & SWEAT | 2000 | USA | CD |
| LOUIE MASTRO | MERMAID IN THE MIST | 1996 | ITA | CD |
| MATCHING MOLE | BBC RADIO 1 LIVE IN CONCERT | 1972 | UK | CD |
| MATCHING MOLE | MATCHING MOLE | 1972 | UK | CD |
| MATCHING MOLE | SMOKE SIGNALS | 2001 | UK | CD |
| MATERIAL | MEMORY SERVES | 1989 | USA | CD |
| MATERIAL | HALLUCINATION ENGINE | 1993 | USA | CD |
| MATHEMATICIANS | IRRATIONAL NUMBERS | 1994 | USA | CD |
| MATHEMATICIANS | FACTOR OF FOUR | 1996 | USA | CD |
| JIM MATHEOS | AWAY WITH WORDS | 1999 | USA | CD |
| MATTER | MATTER | 1993 | USA | CD |
| MATTER | LUNA LOUNGE | 1998 | USA | CD |
| ALO MATTIISEN | READ | 1995 | | CD |
| MAUDLIN OF THE WELL | BATH | 2001 | USA | CD |
| MAUDLIN OF THE WELL | LEAVING YOUR BODY MAP | 2001 | USA | CD |
| PAUL MAURIAT | PAUL MAURIAT 3 | 1978 | FRA | PC |
| MAURO PAGANI | MAURO PAGANI | 1978 | ITA | HC |
| MAUVE SIDESHOW | MAUVE SIDESHOW | 1993 | USA | CD |
| MAUVE SIDESHOW | MEET ME IN THE WASTELAND | 1993 | USA | CD |
| MAUVE SIDESHOW | THE GIRL | 1994 | USA | CD |
| MAXIMUM COHERENCE DURING FLYING | MAXIMUM COHERENCE DURING FLYING | 1999 | USA | CD |
| MAXIMUM INDIFFERENCE | DEMOS 1 & 2 | 1992 | USA | DT |
| MAXIMUM INDIFFERENCE | DEMO 3 | 1994 | USA | PC |
| MAXIMUM INDIFFERENCE | MAXIMUM INDIFFERENCE | 1996 | USA | CD |
| MAXIMUM INDIFFERENCE | DEMOS 1998 | 1998 | USA | CD |
| MAXIMUM INDIFFERENCE | KGM11PP | 1999 | USA | CD |
| MAXIMUM INDIFFERENCE | THE TRANSMUTATIONS OF SUPPOSED ANGELS... | 2000 | USA | CD |
| MAXOPHONE | MAXOPHONE | 1975 | ITA | CD |
| MAXOPHONE | MAXOPHONE (ENGLISH VER) | 1975 | ITA | CD |
| MAXWELL'S DEMON | PROMETHEUS | 2001 | USA | CD |
| JOHN MAYALL | MEMORIES | 1971 | USA | LP |
| JOHN MAYALL | LIVE AT THE MARQUEE 1969 | 1999 | UK | CD |
| JOHN MAYALL | THE MASTERS | 1999 | UK | CD |
| MAYFAIR | ESCAPE | 1995 | GER | CD |
| LYLE MAYS | LYLE MAYS | 1986 | USA | CD |
| MAZINGA PHASER | CRUISING IN THE NEON GLORIES... | 1996 | USA | LP |
| C.W.MCCALL | WOLF CREEK PASS | 1974 | USA | LP |
| C.W.MCCALL | BLACK BEAR ROAD | 1975 | USA | LP |
| PAUL MCCARTNEY | BAND ON THE RUN | 1973 | UK | LP |
| PAUL MCCARTNEY | No More Lonely Nights/ Same (playout) | 1984 | UK | SP |
| MCCHURCH SOUNDROOM | DELUSION | 1971 | GER | DT |
| THE MCCOYS | Hang On Sloopy/ Fever | 1966 | USA | SP |
| MEL MCDANIEL | Baby's got Her Blue Jeans On/ Gunfighter | 1984 | USA | SP |
| MCDONALD AND GILES | McDONALD AND GILES | 1970 | UK | CD |
| IAN MCDONALD | DRIVERS EYES | 1999 | UK | CD |
| COUNTRY JOE MCDONALD | PARADISE WITH AN OCEAN VIEW | 1975 | USA | LP |
| MICHAEL MCDONALD | No Lookin'Back/ Don't Let Me Down | 1985 | USA | SP |
| MISSISSIPPI FRED MCDOWELL | I DO NOT PLAY NO ROCK N'ROLL | 1965 | USA | LP |
| FRED MCDOWELL | VOLUME 2 | 1966 | USA | LP |
| MCGILL MANRING STEVENS | ADDITIONS BY SUBTRACTION | 2001 | USA | CD |
| SCOTT MCGILL | THE HAND FARM | 1997 | USA | CD |
| SCOTT MCGILL'S HAND FARM | RIPE | 1999 | USA | CD |
| CHRIS MCGERGOR'S BROTHERHOOD OF BR | TRAVELLING SOMEWHERE | 1973 | UK | CD |
| LOREENA MCKENNITT | THE MASK AND MIRROR | 1994 | UK | CD |
| SUZAN MCKEOWN | BUSHES & BRIARS | 1998 | USA | CD |
| MCLAUGHLIN/DIMEOLA/DELUCIA | PASSION,GRACE & FIRE | 1983 | USA | LP |
| MCLUHAN | ANOMALY | 1970 | USA | CD |
| SCOTT MCMAHAN | GARDEN OF SAND | 1996 | USA | PC |
| MCOIL | ALL OUR HOPES | 1979 | GER | CD |
| TONY MCPHEE | FOOLISH PRIDE | 1993 | UK | CD |
| TONY MCPHEE | LIVE IN POLAND AT BLUES EXPRESS | 2000 | UK | CD |
| CHRISTINE MCVIE | CHRISTINE McVIE | 1984 | UK | LP |
| MEAT LOAF | BAT OUT OF HELL | 1977 | USA | LP |
| MEDESKI MARTIN & WOOD | LIVE - BOULDER COLORADO 10/22/95 | 1995 | USA | DT |
| MEDINA AZAHARA | MEDINA AZAHARA | 1971 | SPA | HC |
| MEDINA AZAHARA | PASEANDO POR LA MEZQUITA | 1980 | SPA | CD |
| MEDINA AZAHARA | LA ESQUINA DEL VIENTO | 1981 | SPA | HC |
| MEDINA AZAHARA | LIVE | 1990 | SPA | HC |
| MEDITTERANEA | ECCE ROCK | 1981 | ITA | HC |
| MEGACE | INNER WAR | 1999 | GER | CD |
| MEGASHIRA | ZERO HOUR | 1998 | USA | CD |
| MEKANIK DESTRUKTIW KOMANDOH | BERLIN | 1982 | GER | EP |
| JOHN COUGAR MELLENCAMP | Lonely Ol'Night/The Kind Of Fella I Am | 1985 | USA | SP |
| JOHN COUGAR MELLENCAMP | SCARECROW | 1985 | USA | LP |
| JOHN COUGAR MELLENCAMP | THE VERY BEST OF JOHN COUGAR MELLENCAMP | 1985 | USA | PC |
| JOHN COUGAR MELLENCAMP | THE LONESOME JUBILEE | 1987 | USA | CD |
| ANDRE MELLO | BLUE DESERT | 2000 | BRA | CD |
| MELLOW CANDLE | THE VIRGIN PROPHET | 1970 | UK | HC |
| MELLOW CANDLE | SWADDLING SONGS | 1972 | UK | CD |
| MELMOTH | LA DEVANTURE DES IVRESSES | 1969 | FRA | CD |
| MELTING EUPHORIA | THROUGH THE STRANDS OF TIME | 1994 | USA | CD |
| MELTING EUPHORIA | UPON THE SOLAR WINDS | 1995 | USA | CD |
| MELTING EUPHORIA | BEYOND THE MAYBE MACHINE | 1996 | USA | CD |
| MELTING EUPHORIA | INSIDE THE GARDENS OF THE MIND | 1997 | USA | CD |
| MELTING EUPHORIA | OVER THE EDGE OF THE WORLD | 1999 | USA | CD |
| MEMORIANCE | ET APRES | 1976 | FRA | CD |
| MEMORIANCE | L'ECUME DES JOURS | 1979 | FRA | CD |
| MEN AT WORK | BUSINESS AS USUAL | 1982 | AUS | LP |
| MEN AT WORK | It's A Mistake/ Shintaro | 1982 | AUS | SP |
| MEN AT WORK | CARGO | 1983 | AUS | LP |
| MEN OF LAKE | MEN OF LAKE | 1991 | ITA | CD |
| MEN OF LAKE | OUT OF THE WATER | 1994 | ITA | CD |
| MEN OF LAKE | MUSIC FROM THE LAND OF MOUNTAINS,LAKE & | 1998 | ITA | CD |
| MENTAL BLOX | FIRST ON THE BLOX | 1998 | USA | CD |
| MENTAL INCECT | TWO-HEADED FLY | 1995 | USA | CD |
| THE MERCHANTS OF DREAM | STRANGE NIGHT VOYAGE | 1968 | USA | LP |
| MERCURY RISING | BUILDING ROME | 1998 | USA | CD |
| PHIL MERCY | FEAR OF FANTASTIC FLIGHT | 1998 | UK | CD |
| MERCY TRAIN | PRESENCE | 1993 | UK | CD |
| MERIDIEM | FULL CATASTROPHE | 1999 | USA | CD |
| MERZBOW | BATZTOUTAI WITH MATERIAL GADGETS | 198? | JAP | DT |
| MESSAGE | ASTRAL JOURNEYS | 1978 | GER | HC |
| MESTARI | MESTARI | 1993 | FRA | CD |
| METAMORFOSI | INFERNO | 1972 | ITA | CD |
| METAPHOR | STARFOOTED | 1999 | USA | CD |
| THOMAS METCALF | ONE | 1989 | USA | CD |
| MIKE METHENY | BLUE JAY SESSIONS | 1981 | USA | LP |
| PAT METHENY | BRIGHT SIZE LIFE | 1976 | USA | CD |
| PAT METHENY | WATERCOLORS | 1977 | USA | CD |
| PAT METHENY GROUP | PAT METHENY GROUP | 1978 | USA | CD |
| PAT METHENY | NEW CHAUTAUQUA | 1979 | USA | CD |
| PAT METHENY GROUP | AMERICAN GARAGE | 1979 | USA | CD |
| PAT METHENY & LYLE MAYS | AS FALLS WICHITA, SO FALLS WICHITA FALLS | 1981 | USA | CD |
| PAT METHENY GROUP | OFFRAMP | 1982 | USA | CD |
| PAT METHENY GROUP | TRAVELS | 1983 | USA | CD |
| PAT METHENY GROUP | FIRST CIRCLE | 1984 | USA | CD |
| PAT METHENY W/HADEN & HIGGINS | REJOICING | 1984 | USA | HC |
| PAT METHENY GROUP | STILL LIFE (TALKING) | 1987 | USA | CD |
| PAT METHENY GROUP | LETTER FROM HOME | 1989 | USA | CD |
| METHENY / HOLLAND / HAYNES | QUESTION & ANSWER | 1990 | USA | CD |
| METHVSELAH | MATTHEW,MARK,LUKE & JOHN | 196? | USA | LP |
| METRO | METRO | 1976 | UK | CD |
| ARTURO MEZA | NO VAYAMOS IRNOS SIN EL MAR | 1984 | MEX | CD |
| ARTURO MEZA | BORGES | 1999 | MEX | CD |
| MEZQUITA | RECUERDOS DE MI TIERRA | 1979 | SPA | CD |
| MIA | TRANSPARENCIAS | 1976 | ARG | CD |
| MIA | MAGICOS JUEGOS DEL TIEMPO | 1977 | ARG | CD |
| MIA | CORNONSTIPICUM | 1978 | ARG | CD |
| MIAMI SOUND MACHINE | PRIMITIVE LOVE | 1985 | USA | LP |
| G.ESTEVAN/MIAMI SOUND MACHINE | LET IT LOOSE | 1987 | USA | CD |
| KAREN MICHALSON | OF NO IMPORTANCE | 1996 | USA | PC |
| RIGEL MICHELINA | BARTOK'S ROOM | 2001 | VEN | CD |
| MICRO RITMIA | MICRO RITMIA | 1996 | MEX | CD |
| MIDAS | BEYOND THE CLEAR AIR | 1988 | JAP | CD |
| MIDAS | LIVE AT SILVER ELEPHANT - 1/16/88 | 1988 | JAP | DT |
| MIDAS | MIDAS 2 | 1996 | JAP | CD |
| MIDAS | THIRD OPERATION | 1999 | JAP | CD |
| MIDNIGHT SUN | METALMACHINE | 2001 | SWE | CD |
| EERO MIEHO | ATHANORA | 1992 | FIN | CD |
| MIKE + THE MECHANICS | MIKE + THE MECHANICS | 1985 | UK | LP |
| MIKE + THE MECHANICS | LIVING YEARS | 1988 | UK | CD |
| BUDDY MILES | MORE MILES PER GALLON | 1975 | USA | LP |
| PIERO MILESI | THE NUCLEAR OBSERVATORY OF MR.NANOF | 1986 | ITA | CD |
| PIERO MILESI | WITHIN HIMSELF | 2000 | USA | CD |
| PHIL MILLER | SPLIT SECONDS | 1988 | UK | CD |
| PHIL MILLER | CUTTING BOTH WAYS | 1989 | UK | CD |
| PHIL MILLER | DIGGING IN | 1991 | UK | HC |
| PHIL MILLER | IN CAHOOTS - LIVE IN JAPAN | 1993 | UK | CD |
| PHIL MILLER/IN CAHOOTS | OUT OF THE BLUE | 2000 | UK | CD |
| THE STEVE MILLER BAND | BOOK OF DREAMS | 1977 | USA | LP |
| MILLER/SCHUMACHER | FLOOD | 1998 | USA | CD |
| MARIO MILLO | EPIC III | 1979 | AUS | CD |
| PINO MINAFRA | CANTO LIBERO | 2001 | ITA | CD |
| MIND GALLERY | THE LEMMINGS WERE PUSHED | 1992 | CAN | CD |
| MIND GALLERY | GUILTY UNTIL PROVEN RICH | 1995 | CAN | CD |
| MIND GALLERY | THREE MEALS FROM REVOLUTION | 2000 | CAN | CD |
| MIND MASQUE | MIND MASQUE | 1997 | GER | CD |
| MIND OVER MATTER | THE COLOURS OF LIFE | 1988 | GER | CD |
| MIND'S EYE | INTO THE UNKNOWN | 1998 | SWE | CD |
| MIND'S EYE | WAITING FOR THE TIDE | 2000 | SWE | CD |
| MINDFLOWER | MINDFLOATER | 2001 | ITA | CD |
| MINIMUM VITAL | ENVOL TRIANGLES / LES SAISONS MARINES | 1985 | FRA | CD |
| MINIMUM VITAL | LES SAISONS MARINES | 1988 | FRA | LP |
| MINIMUM VITAL | SARABANDES | 1990 | FRA | CD |
| MINIMUM VITAL | LA SOURCE | 1993 | FRA | CD |
| MINIMUM VITAL W/ PHILIPPE CAUVIN | LIVE - PESSAC (SALLE LE ROYAL) 4/20/93 | 1993 | FRA | HC |
| MINIMUM VITAL | LIVE - PROGFEST 11/6/94 | 1994 | FRA | DT |
| MINIMUM VITAL | ESPIRIT D'AMOR | 1997 | FRA | CD |
| MINIMUM VITAL | AU CERCLE DE PIERRE | 1998 | FRA | CD |
| MINIMUM VITAL | LIVE - MEXICALI 3/28/98 | 1998 | FRA | DT |
| MINISTRY OF LOVE | DEMO 91 | 1991 | USA | PC |
| MINISTRY OF LOVE | MINISTRY OF LOVE | 1991 | USA | PC |
| MINISTRY OF LOVE | DEMO 92 | 1992 | USA | PC |
| BEN MINK | FOREIGN EXCHANGE | 1980 | CAN | LP |
| MINK DEVILLE | CABRETTA | 1977 | USA | LP |
| MINK DEVILLE | RETURN TO MAGENTA | 1978 | USA | LP |
| MINOTAURUS | FLY AWAY | 1978 | GER | DT |
| MINSTER HILL | MINSTER HILL | 1999 | USA | CD |
| MINUS INFINITY | MINUS INFINITY | 1998 | USA | CD |
| MIRA | MIRA | 2000 | USA | CD |
| MIRACLE MILE | TO BURN TOGETHER | 1997 | USA | CD |
| MIRAGE | LIVE 14.12.94 | 1995 | UK | CD |
| MIRAGE | A SECRET PLACE | 2000 | FRA | CD |
| MIRIODOR | RENCONTRES | 1984 | CAN | CD |
| MIRIODOR | TOT OU TARD | 1987 | CAN | DT |
| MIRIODOR | MIRIODOR | 1988 | CAN | CD |
| MIRIODOR | 3RD WARNING | 1991 | CAN | CD |
| MIRIODOR | JONGLERIES ELASTIQUES | 1996 | CAN | CD |
| MIRIODOR | MEKANO | 2001 | CAN | CD |
| MIRTHRANDIR | FOR YOU THE OLD WOMEN | 1975 | USA | CD |
| MISCELLANE | PAINTED PALM | 2001 | | CD |
| MISSING PERSONS | SPRING SESSION M | 1982 | USA | CD |
| MISSING PERSONS | RHYME & REASON | 1984 | USA | LP |
| MISSING PERSONS | COLOR IN YOUR LIFE | 1986 | USA | LP |
| MISSION GIANT | FRIENDS OF SOUND | 1998 | USA | CD |
| MISSION GIANT | I SCREAM SOCIAL | 2001 | USA | CD |
| THE MISTAKES | THE MISTAKES | 1995 | USA | CD |
| MR.BROWN | MELLON TRE OGON | 197? | SWE | HC |
| MR.BUNGLE | DISCO VOLANTE | 1995 | USA | CD |
| MR. QUIMBY'S BEARD | MR. QUIMBY'S BEARD | 1996 | UK | PC |
| MISTRESS OF STRANDS | MISTRESS OF STRANDS | 2000 | USA | CD |
| MISTRESS QUICKLY | EVERYTHING WAS BEAUTIFUL & NOTHING HURT | 1995 | USA | HC |
| JONI MITCHELL | THE HISSING OF SUMMER LAWNS | 1975 | USA | LP |
| JONI MITCHELL | DON JUANS RECKLESS DAUGHTER | 1977 | USA | LP |
| KIMIO MIZUTANI | A PATH THROUGH HAZE | 1971 | JAP | CD |
| MK II | BURNING DAYLIGHT | 1994 | UK | CD |
| MARIA KALANIEMI | AHMA | 1999 | FIN | CD |
| MNEMONISTS | HORDE | 1981 | USA | CD |
| MOBEUS/NEUMEIER/ENGLER,KARRER/DIER | SPACE EXPLOSION | 1997 | UK | CD |
| MOBY TRIP | NKU | 1997 | | CD |
| PHILIPPE DE MOCTOURIS | INTIMAL GUITARE | 1997 | FRA | CD |
| RON MODELL/MICHAEL MANTRA | SONIC CONTINUUM | 1999 | USA | CD |
| THE MODERN ART | ALL ABOARD THE MIND TRAIN | 1998 | UK | CD |
| MODERN WHIGS | RAPED BY THE COPS | 1997 | USA | CD |
| MODRY EFEKT | NOVA SYNTEZA | 1971 | CZE | HC |
| MODRY EFEKT | NOVA SYNTEZA 2 | 1974 | CZE | HC |
| MODRY EFEKT | MODRY EFEKT & RADIM HLADIK | 1974 | CZE | CD |
| MODRY EFEKT | SVITANIE | 1977 | CZE | CD |
| MODRY EFEKT | SVET HLEDACU | 1979 | CZE | CD |
| MODRY EFEKT | 33 | 1981 | CZE | LP |
| MODULO 1000 | NAO FALE COM PAREDES | 1972 | BRA | HC |
| MOE!STAIANO | THE NON-STUDY OF FIRST IMPRESSIONS | 1997 | USA | CD |
| MOE. | HEADSEAD | 1994 | USA | CD |
| MOE. | LOAF | 1994 | USA | CD |
| MOE. | MEAT | 1996 | USA | CD |
| MOE. | NO DOY | 1996 | USA | CD |
| MOE. | LIVE SAN FRANCISCO 3/1/97 | 1997 | USA | DT |
| MONA LISA | L'ESCAPADE | 1974 | FRA | CD |
| MONA LISA | GRIMACES | 1975 | FRA | CD |
| MONA LISA | LE PETIT VIOLON DE MR.GREGOIRE | 1977 | FRA | CD |
| MONA LISA | AVANT QU'IL NE SOIT TROP TARD | 1978 | FRA | CD |
| MONA LISA | VERS DEMAIN | 1979 | FRA | CD |
| MONA LISA | DE L'OMBRE A LA LUMIERE | 1998 | FRA | CD |
| MONA LISA | PROGFEST 2000 | 2001 | | CD |
| EDDIE MONEY | LIFE FOR THE TAKING | 1978 | USA | LP |
| EDDIE MONEY | Take Me Home Tonight/Calm before storm | 1986 | USA | SP |
| MONGOL | DOPPLER 444 | 1997 | JAP | CD |
| THE MONKEES | GREATEST HITS | 1972 | USA | LP |
| FRANCIS MONKMAN | 21ST CENTURY BLUES | 1998 | UK | CD |
| MONOLITH | ELEMENTS OF MONOLITH | 1978 | USA | LP |
| MONOLITH | MONOLITH | 1998 | USA | CD |
| IL MONSTRO | BLEU NUIT ET LES SILHOUETTES AUX CHAPEAU | 2001 | BEL | CD |
| MONTAUK PROJECT | JA2M | 2000 | BRA | CD |
| MONTEFELTRO | IL TIEMPO DI FAR LA FANTASIA | 1993 | ITA | CD |
| MONTEFELTRO | IL PESCE ROSSO... | 2001 | ITA | CD |
| GUSTAVO MONTESANO | HOMENAJE | 1977 | ARG | CD |
| RONNIE MONTROSE | OPEN FIRE | 1978 | USA | CD |
| THE MOODY BLUES | DAYS OF FUTURE PASSED | 1967 | UK | CD |
| THE MOODY BLUES | Tuesday Afternoon/Another Morning | 1967 | UK | LP |
| THE MOODY BLUES | IN SEARCH OF THE LOST CHORD | 1968 | UK | CD |
| THE MOODY BLUES | A QUESTION OF BALANCE | 1970 | UK | CD |
| THE MOODY BLUES | EVERY GOOD BOY DESERVES FAVOUR | 1971 | UK | CD |
| THE MOODY BLUES | OUT OF THIS WORLD | 1979 | UK | LP |
| THE MOODY BLUES | VOICES IN THE SKY | 1985 | UK | CD |
| THE MOODY BLUES | THE OTHER SIDE OF LIFE | 1986 | UK | LP |
| MOOM | TOOT | 1995 | UK | CD |
| THE MOON DANCE EXPERIMENT | FALL AWAKE IN YOUR DREAMS TONIGHT | 1999 | USA | CD |
| MOONGARDEN | BRAINSTORM OF EMPTYNESS | 1996 | ITA | CD |
| MOONGARDEN | THE GATES OF OMEGA | 2001 | ITA | CD |
| THE MOOR | EVERY PIXIE SELLS A STORY | 1993 | SWE | CD |
| THE MOOR | FLUX | 1996 | SWE | CD |
| STEVE MOORE | A QUIET GATHERING | 1988 | UK | LP |
| VIRGIL MOOREFIELD | DISTRACTIONS ON THE WAY TO THE KING'S... | 1994 | USA | CD |
| PATRICK MORAZ | I | 1976 | UK | LP |
| AIRTO MOREIRA | THE ESSENTIAL AIRTO featurng FLORA PURIM | 1976 | BRA | LP |
| EDUARDO MORENO | EL ULTIMO HOMBRE | 1995 | SPA | CD |
| LOS MORENOS | LOS MORENOS | 197? | INA | PC |
| MORPHEUS | RABENTEUER | 1976 | GER | CD |
| THE MORRIGAN | WRECKERS | 1996 | UK | CD |
| THE MORRIGAN | RIDES OUT | 1997 | UK | CD |
| VALARIE MORRIS | TRANSFORMATIONS | 1997 | USA | CD |
| MORS SYPHILITICA | MORS SYPHILITICA | 1996 | USA | CD |
| MORS SYPHILITICA | PRIMOSE | 1998 | USA | CD |
| MORS SYPHILITICA | FEATHER AND FATE | 2001 | USA | CD |
| NEAL MORSE | NEAL MORSE | 1999 | USA | CD |
| STEVE MORSE | THE INTRODUCTION | 1984 | USA | DT |
| STEVE MORSE | HIGH TENSION WIRES | 1989 | USA | CD |
| STEVE MORSE BAND | SOUTHERN STEEL | 1991 | USA | CD |
| STEVE MORSE BAND | COAST TO COAST | 1992 | USA | CD |
| STEVE MORSE | MAJOR IMPACTS | 2000 | USA | CD |
| STEVE MORSE BAND | SPLIT DECISION | 2002 | USA | CD |
| MORTE MACABRE | SYMPHONIC HOLOCAUST | 1998 | SWE | CD |
| MOSAIC | ULTIMATUM | 1978 | FRA | CD |
| MOSAIC | MINIATURES | 1995 | ITA | CD |
| SCOTT MOSHER | VIRTUALITY | 2001 | USA | CD |
| STEPHEN LUCKY MOSKO | INDIGENOUS MUSIC | 1998 | USA | CD |
| THE MOTELS | LITTLE ROBBERS | 1983 | USA | LP |
| THE MOTELS | Shame/ Save The Last Dance For Love | 1985 | USA | SP |
| MOTHER GONG | THE BEST OF MOTHER GONG | 1997 | UK | CD |
| MOTHER MALLARD'S PORTABLE MASTERPI | 1970-1973 | 1973 | USA | CD |
| MOTHER MALLARD'S PORTABLE MASTERPI | LIKE A DUCK TO WATER | 1976 | USA | CD |
| MOTHER MAY I | MOTHER MAY I | 1986 | USA | LP |
| MOTOR TOTEMIST GUILD | ARCHIVE ONE | 1986 | USA | CD |
| MOTOR TOTEMIST GUILD | ARCHIVE TWO | 1988 | USA | CD |
| MOTOR TOTEMIST GUILD | SHAPUNO ZOO | 1988 | USA | LP |
| MOTOR TOTEMIST GUILD | All AMERICAN CITY | 2000 | USA | CD |
| MOTT THE HOOPLE | ALL THE YOUNG DUDES | 1972 | UK | LP |
| MICHEL MOULINIE | CHRYSALIDE | 1978 | FRA | HC |
| MOVING GELATINE PLATES | MOVING GELATINE PLATES | 1971 | FRA | CD |
| MOVING GELATINE PLATES | THE WORLD OF GENIUS HANS | 1972 | FRA | CD |
| MOVING HEARTS | MOVING HEARTS | 1981 | IRE | CD |
| MR. QUIMBY'S BEARD | OUT THERE | 1994 | UK | CD |
| MR. QUIMBY'S BEARD | THE DEFINITIVE UNSOLVED MYSTERIES OF... | 1999 | UK | CD |
| MR.MISTER | WELCOME TO THE REAL WORLD | 1985 | USA | LP |
| MR.MISTER | GO ON | 1987 | USA | CD |
| THE MUCKRAKERS | WE WERE SNAILS | 1996 | USA | CD |
| JON MUELLER | PIANO BREAD | 1999 | USA | CD |
| THE MUFFINS | CHRONOMETERS | 1976 | USA | CD |
| THE MUFFINS | MANNA / MIRAGE | 1978 | USA | CD |
| THE MUFFINS | <185> | 1981 | USA | CD |
| THE MUFFINS | OPEN CITY | 1985 | USA | CD |
| THE MUFFINS | LOVELETTER #1 | 2001 | USA | CD |
| MUGEN | VENTO DI PRIMAVERA | | JAP | FD |
| MUGEN | SINFONIA DELLA LUNA | 1984 | JAP | CD |
| MUGEN | THE PRINCESS OF KINGDOM GONE | 1988 | JAP | CD |
| MUGEN | LEDA ET LE CYGNE | 1989 | JAP | CD |
| MUS MUHJADI | INDONESIAN KERONCONG | 1975 | INA | PC |
| MUJICIAN | THE JOURNEY | 1990 | UK | CD |
| MUJICIAN | POEM ABOUT THE HERO | 1994 | UK | CD |
| MUJICIAN | SPACETIME | 2001 | UK | CD |
| CHIE MUKAI | KOKYU IMPROVISATION | 1994 | JAP | CD |
| MARTIN MULL | AND HIS FABULOUS FURNITURE IN YOUR... | 1973 | USA | LP |
| MULLMUZZLER | KEEP IT TO YOURSELF | 1999 | USA | CD |
| JAMES LABRIE'S MULLMUZZLER | 2 | 2001 | USA | CD |
| MULTI-STORY | EAST / WEST | 1985 | UK | CD |
| MUROS DE AGUA | MUROS DE AGUA | 2000 | MEX | CD |
| MURPHY BLEND | FIRST LOSS | 1971 | GER | HC |
| ANNE MURRAY | NEW KIND OF FEELING/KEEP IT THAT WAY | 1984 | USA | PC |
| ANNE MURRAY | Time don't Run Out On Me/Let Your Heart | 1984 | USA | SP |
| MURUROA | PLANETS (DEMO) | 2001 | ITA | CD |
| MUSCI CUTLER ROSE GABBIANO | STEEL WATER LIGHT | 2001 | VAR | CD |
| MUSCI VENOSTA MARIANI | LOSING THE ORTHODOX PATH | 1997 | ITA | CD |
| MUSEO ROSENBACH | ZARATHUSTRA | 1973 | ITA | CD |
| MUSHROOM | ALIVE & IN FULL BLOOM | 1998 | USA | CD |
| MUSHROOM | ANALOG HI-FI SURPRISE | 1999 | USA | CD |
| MUSHROOM | COMPARED TO WHAT | 2001 | USA | CD |
| MUSHROOM | EARLY ONE MORNING | ???? | UNK | HC |
| MUSIC FROM THE FUTURE | MIND TRIPS | 1999 | USA | CD |
| MUSIC FROM THE FUTURE | RANDOM NOISE GENERATION | 1999 | USA | PC |
| MUSICA D'REPUESTO | AV ABUC | 1998 | CUB | CD |
| MUSICA DISPERSA | MUSICA DISPERSA | 1971 | SPA | CD |
| MUSICA RESERVATA | PARANOIAC OCEAN | 1997 | JAP | CD |
| MUSICA URBANA | MUSICA URBANA | 1976 | SPA | CD |
| MUSICA URBANA | IBERIA | 1978 | SPA | CD |
| MUSICANTE | SONORIDADES MEXICANAS | 1987 | MEX | CD |
| MUSIKANTO AUTOMATIKA | MUSIKANTO AUTOMATIKA | 1983 | VEN | HC |
| MUSIQUE NOISE | FULMINES REGULARIS | 1988 | FRA | LP |
| SABAH HABAS MUSTAPHA | JALAN KOPO | 1997 | INA | CD |
| SABAH HABAS MUSTAPHA & THE JUGA... | SO LA LI | 2000 | INA | CD |
| 3 MUSTAPHAS 3 | PLAY MUSTY FOR ME | 2001 | UK | CD |
| MUZ | BANANA IN PORTUGUESE | 1999 | USA | CD |
| JOHN MYALL | PADLOCK ON THE BLUES | 1999 | UK | CD |
| MIKE MYERS | MYRIAD | 1996 | USA | CD |
| MYND MUSIC | IMAGINE THIS | 1994 | UK | HC |
| MYRBEIN | MYRORNAS KRIG | 1982 | SWE | CD |
| MYRDHIN | AN DELEN DIR | 1984 | FRA | CD |
| MYSTERY | THEATRE OF THE MIND | 1995 | CAN | CD |
| MYSTERY | DESTINY | 1998 | CAN | CD |
| MYSTERY | AT THE DAWN OF A NEW MILLENIUM | 2000 | CAN | CD |
| MYTHICAL BURROWING ANIMALS | MYTHICAL BURROWING ANIMALS | 2000 | UK | CD |
| MYTHOLOGY BULLFINCH | THE AGE OF CHIVALRY | 1999 | USA | CD |
| MYTHOLOGY BULLFINCH | SONGS FROM THE AGE OF FABIE | 2000 | USA | CD |
| MYTHOS | MYTHOS | 1971 | GER | CD |
| MYTHOS | DREAMLAB | 1975 | GER | CD |
| MYTHOS | QUASAR | 1980 | GER | LP |