| Act | Discs | Tracks |
| M People | 0 | 4 |
| Ma Rainey | 0 | 1 |
| Macy Gray | 1 | 11 |
| Madame Tussaud's Dance Orchestra | 0 | 1 |
| Madness | 3 | 70 |
| Madonna | 7 | 44 |
| Madonna & Prince | 0 | 2 |
| Maestro Sam Wooding Y Sus Chocolate Kiddies | 0 | 1 |
| Mahalia Jackson | 0 | 2 |
| Maisonettes, The | 0 | 1 |
| Malavoi | 0 | 1 |
| Malavoi & Marie José Alie | 0 | 1 |
| Malcolm McLaren | 0 | 1 |
| Malcolm McLaren & Sonia Rykiel | 0 | 1 |
| Manchester United Football Squad, The | 1 | 2 |
| Mandy Patinkin | 0 | 2 |
| Mangal Singh | 0 | 1 |
| Mangal Singh & Amar | 1 | 2 |
| Manic Street Preachers | 0 | 7 |
| Manjula Guru | 0 | 2 |
| Mansun | 0 | 5 |
| Mantarry | 0 | 1 |
| Mantovani | 1 | 12 |
| Mantovani & the Mike Sammes Singers | 0 | 1 |
| Manuel & his Music of the Mountains | 0 | 1 |
| Marc Almond | 2 | 15 |
| Marc Almond & Gene Pitney | 0 | 1 |
| Marc Cohn | 2 | 7 |
| Marcia Griffiths | 0 | 1 |
| Marcos Valle | 0 | 1 |
| Mari Wilson | 0 | 1 |
| Maria Creuza | 0 | 1 |
| Maria McKee | 0 | 4 |
| Mariah Carey | 1 | 3 |
| Marianne Faithfull | 0 | 1 |
| Marie-Laure Béraud | 0 | 1 |
| Marillion | 2 | 18 |
| Marilyn | 0 | 1 |
| Marilyn Manson | 0 | 1 |
| Marilyn Monroe | 0 | 4 |
| Mario 'Harp' Lorenzi & his Rhythmics | 0 | 1 |
| Mario Lanza | 1 | 20 |
| Marisa Monte | 0 | 1 |
| Mark Eitzel | 0 | 1 |
| Mark Isham | 1 | 9 |
| Mark Knopfler | 1 | 4 |
| Mark Knopfler & Chet Atkins | 1 | 10 |
| Mark Morrison | 1 | 8 |
| Mark Perry & ATV | 0 | 1 |
| Mark Wynter | 0 | 1 |
| Mark-Anthony Turnage | 0 | 1 |
| Marmalade, The | 0 | 1 |
| Marshall Hain | 0 | 1 |
| Martha Reeves & the Vandellas | 0 | 2 |
| Martin Block Jam Session | 0 | 2 |
| Martin Stephenson & the Daintees | 0 | 1 |
| Martina McBride | 0 | 2 |
| Martino da Silva | 0 | 2 |
| Marty Robbins | 0 | 2 |
| Marty Wilde | 0 | 1 |
| Martyn Joseph | 0 | 1 |
| Marv Johnson | 0 | 1 |
| Marvin Gaye | 4 | 45 |
| Marvin Gaye & Diana Ross | 0 | 1 |
| Marvin Gaye & Tammi Terrell | 0 | 1 |
| Mary Black | 0 | 1 |
| Mary Chapin Carpenter | 0 | 1 |
| Mary Coughlan | 0 | 1 |
| Mary J. Blige | 1 | 6 |
| Mary Lou Williams | 0 | 1 |
| Mary Lou Williams & her Kansas City Seven | 0 | 1 |
| Mary Lou Williams' Girl Stars | 0 | 1 |
| Mary Love | 0 | 1 |
| Mary Margaret O'Hara | 1 | 4 |
| Mary Wells | 0 | 2 |
| Mary-Chapin Carpenter | 0 | 2 |
| Massive Attack | 1 | 14 |
| Material & William S Burroughs | 0 | 1 |
| Matraca Berg | 0 | 1 |
| Matt Monro | 1 | 22 |
| Matthew Wilder | 0 | 1 |
| Matthews Southern Comfort | 0 | 1 |
| Maura O'Connell | 0 | 1 |
| Maurice Chevalier | 0 | 1 |
| Maurice Chevalier & Louis Jourdan | 0 | 1 |
| Maurice Winnick & his Orchestra | 0 | 2 |
| Maurice Winnick & his Sweet Music | 0 | 1 |
| Mavericks, The | 0 | 1 |
| Max Bygraves | 0 | 1 |
| Maxi Priest | 0 | 1 |
| Maxine Brown | 0 | 1 |
| Maxine Sullivan | 0 | 1 |
| Mayte | 0 | 1 |
| Mazzy Star | 0 | 2 |
| McCoys, The | 0 | 1 |
| McEnroe & Cash with the Full Metal Rackets | 1 | 3 |
| McGuiness Flint | 0 | 2 |
| McGuire Sisters, The | 0 | 1 |
| McKenzie & Condon's Chicagoans | 0 | 1 |
| McKinney's Cotton Pickers | 0 | 5 |
| MDK | 0 | 1 |
| Meade 'Lux' Lewis | 0 | 3 |
| Meatloaf | 1 | 6 |
| Mel & Kim | 0 | 1 |
| Mel Torme | 0 | 2 |
| Melanie G | 0 | 1 |
| Melba Moore | 0 | 3 |
| Melodians, The | 0 | 1 |
| Melvin Sparks | 0 | 1 |
| Memphis Jug Band | 0 | 1 |
| Men At Work | 0 | 1 |
| Menswear | 0 | 1 |
| Mercury Rev | 0 | 2 |
| Mezzrow-Bechet Quintet | 0 | 1 |
| Mezzrow-Ladnier Quintet | 0 | 1 |
| MGM Studio Orchestra and Chorus, The | 0 | 2 |
| MGM Studio Orchestra, The | 0 | 14 |
| Mica Paris | 0 | 1 |
| Michael Ball | 1 | 3 |
| Michael Bolton | 1 | 18 |
| Michael Cox | 0 | 1 |
| Michael Holliday | 0 | 1 |
| Michael Jackson | 8 | 62 |
| Michael Jackson & Janet Jackson | 0 | 1 |
| Michael Jackson & Paul McCartney | 0 | 1 |
| Michael Jackson & Siedah Garrett | 0 | 1 |
| Michael Nyman Band | 1 | 15 |
| Michel Warlop | 0 | 1 |
| Michelle Gayle | 0 | 2 |
| Michelle Shocked | 0 | 4 |
| Michelle Wright | 0 | 1 |
| Mick Hucknall & the Frantic Elevators | 1 | 6 |
| Middle Of The Road | 0 | 1 |
| Midge Ure | 0 | 9 |
| Midge Ure & Mick Karn | 0 | 1 |
| Midnight Oil | 2 | 9 |
| Miff Mole & his Molers | 0 | 1 |
| Mike & The Mechanics | 0 | 1 |
| Mike Scott | 0 | 1 |
| Mildred Bailey | 1 | 21 |
| Miles Davis | 2 | 20 |
| Miles Davis All-Stars | 0 | 1 |
| Miles Davis Orchestra | 0 | 1 |
| Miles Davis Quintet, The | 1 | 5 |
| Millie Jackson | 0 | 2 |
| Mills Blue Rhythm Band | 0 | 2 |
| Mills Brothers, The | 0 | 3 |
| Milton Brown & his Brownies | 0 | 2 |
| Milton Keynes Chamber Orchestra | 0 | 1 |
| Milva | 1 | 16 |
| Mindy McCready | 0 | 1 |
| Miracles, The | 0 | 1 |
| Miss Rhapsody & Reuben Cole's Orchestra | 0 | 1 |
| Miss World | 1 | 4 |
| Mission, The | 0 | 1 |
| Missourians, The | 0 | 1 |
| Mitch Miller & the Gang | 0 | 2 |
| Mitchell's Jazz Kings | 0 | 1 |
| Modern Mountaineers | 0 | 1 |
| Mohammed Rafi & Chorus | 0 | 1 |
| Moira Anderson | 0 | 2 |
| Molly Half Head | 0 | 1 |
| Moments, The | 0 | 3 |
| Moments, The & Whatnauts | 0 | 1 |
| Monaco | 0 | 1 |
| Monk Hazel and his Bienville Roof Orchestra | 0 | 1 |
| Monkeys, The | 0 | 1 |
| Mono | 0 | 1 |
| Monsoon | 1 | 11 |
| Montana Taylor | 0 | 3 |
| Monty Python | 1 | 4 |
| Moody Blues | 0 | 1 |
| Moody Blues, The | 0 | 2 |
| Morecheeba | 0 | 2 |
| Mormon Tabernacle Choir, The | 0 | 2 |
| Morris Minor & the Majors | 0 | 1 |
| Morrissey | 3 | 23 |
| Morriston Orpheus Choir, The | 0 | 2 |
| Mory Kante | 0 | 1 |
| Mother May I | 0 | 1 |
| Mouloudji | 0 | 1 |
| Mound City Blue Blowers | 0 | 1 |
| Move, The | 0 | 1 |
| Moving Hearts | 0 | 1 |
| Mozarteum Orchestra Salzburg | 0 | 1 |
| Mr Acker Bilk & his Paramount Jazz Band | 0 | 1 |
| Mr Blobby | 1 | 4 |
| Mr Bloe | 0 | 1 |
| Mr Mister | 0 | 2 |
| Mr. Big | 0 | 1 |
| Mud | 0 | 3 |
| Mudlarks, The | 0 | 1 |
| Muggsy Spanier | 1 | 21 |
| Muggsy Spanier & his V-Disc Dixielanders | 0 | 1 |
| Munchkins, The | 0 | 9 |
| Munchner Runfunkorchester | 0 | 15 |
| Munchner Symph Orchester | 0 | 1 |
| Mungo Jerry | 0 | 1 |
| Muriel Smith | 0 | 1 |
| Muse | 0 | 2 |
| Musical Youth | 0 | 1 |
| Musici San Sebastiano | 0 | 6 |
| Mutha's Day Out | 0 | 1 |
| Mutt Carey's New Yorkers | 0 | 1 |
| My Bloody Valentine | 0 | 1 |
My Music Collection was last updated: 27 February 2000