| Ma Baker's Soul Factory | Zip Hop jungle | 1996 | CD | |
| Maailmanlopun mylly | Demo | 2011 | CDS | |
| Maarit | Laakson liljasta metsän tyttöön | 2002 | CD | |
| Machine Men | Elegies | 2005 | CD | |
| Magna Vice | Hope you find your way out | 2012 | CDS | |
| Mahavishnu Orchestra, The | The Inner mountain flame | 1971 | CD | |
| Mahavishnu Orchestra, The | Bird's fire | 1973 | CD | |
| Mahavishnu Orchestra, The | John McLaughlin and the Mahavishnu Orchestra - The Collection | 1991 | CD | |
| Mahler, Gustav | Symphony No. 2? | 1989 | CD | |
| Maj Karman Kauniit Kuvat | Buster Keaton | 1998 | CDEP | |
| Maj Karman Kauniit Kuvat | Iskelmä | 1998 | CDEP | |
| Maj Karman Kauniit Kuvat | Kaakao | 1998 | CD | |
| Major Arcana | Major Arcana | 1976 | CD | |
| Malpractice | Of shape and balance | 1998 | CD | |
| Mama King, The | Dominoes | 2007 | CDEP | |
| Man | 2 Ozs. Of plastic with a hole in the midlle | 1969 | CD | |
| Man | Revelation | 1969 | CD | |
| Man | Do you like it in here, are you setlling in? | 1971 | CD | |
| Man | Be good to yourself at least once a day | 1972 | CD | |
| Man | Greasy truckers party | 1972 | CD | |
| Man | Back into the future | 1974 | CD | |
| Man | Call down the moon | 1975 | CD | |
| Man | Slow motion | 1975 | CD | |
| Man | Maximun darkness | 1976 | CD | |
| Man | The Welsh connection | 1976 | CD | |
| Man | All's well that ends well | 1977 | CD | |
| Man | Christmas at the Patti 1972 | 1997 | CD | |
| Man | Friday 13th | 1997 | CD | |
| Man | 1999 Party Tour Live - Live in Chicago 1974 | 1998 | CD | |
| Man | Dawn of Man | 1998 | CD | |
| Man | Live in London 1975 | 1998 | CD | |
| Man | Twang Dynasty | 1998 | CD | |
| Man | Live / Official bootleg | 1999 | CD | |
| Man | Live at the Rainbow 1972 | 1999 | CD | |
| Man | To live for to die | 1999 | CD | |
| Man | Endagered species | 2000 | CD | |
| Mana Mana | Murheen laakso | 2000 | CD | |
| Manboy | Demo | – | CDS | |
| Manboy | Majestic | 2006 | CD | |
| Manfred Mann | Soul of Mann | 1967 | CD | |
| Manfred Mann | The Collection | 1990 | CD | |
| Manfred Mann | EP Collection | 1999 | CD | |
| Manfred Mann's Earth Band | Mann Live | – | CD | |
| Manfred Mann's Earth Band | Glorified Magnified | 1972 | CD | |
| Manfred Mann's Earth Band | Messin' | 1973 | CD | |
| Manfred Mann's Earth Band | Solar Fire | 1974 | CD | |
| Manfred Mann's Earth Band | The Good earth | 1974 | CD | |
| Manfred Mann's Earth Band | Nightingales & Bombers | 1975 | CD | |
| Manfred Mann's Earth Band | The Roaring silence | 1976 | CD | |
| Manfred Mann's Earth Band | Watch | 1978 | CD | |
| Manfred Mann's Earth Band | Angel station | 1979 | CD | |
| Manfred Mann's Earth Band | Budabest Live | 1983 | CD | |
| Manfred Mann's Earth Band | Soft Vengeance | 1996 | CD | |
| Manhattan Transfer, The | The Manhattan Transfer | 1975 | CD | |
| Manhattans, The | The Collection | 1990 | CD | |
| Manowar | Sign of the hammer | 1984 | CD | |
| Manowar | Fighting the world | 1987 | CD | |
| Manowar | The triumph of steel | 1992 | CD | |
| Manowar | The Hell of steel - Best of | 1994 | CD | |
| Manowar | Hell on wheels Live | 1997 | CD | |
| Manowar | Warriors of the world | 2002 | CD | |
| Mansikka, Sanna | Läpikuultavaa | 1998 | CDEP | |
| Mansikka, Sanna | Unienleikkaaja saa paikan | 1999 | CD | |
| Manzana | Falling to pieces | 2006 | CDS | |
| Marianne S | Demo - Studio live 98 | 1998 | CDEP | |
| Marianne S. | Iholla | 2006 | CD | |
| Marianne S. | Sumu | 2006 | CDS | |
| Marillion | Script for a Jester's tear | 1983 | CD | |
| Marillion | Fugazi | 1984 | CD | |
| Marillion | Misplaced childhood | 1985 | CD | |
| Marillion | B'sides themselves | 1988 | CD | |
| Marillion | The thieving Magpie | 1988 | CD | |
| Marillion | Assassination at garden party, bootleg | 1991 | CD | |
| Marillion | A singles collection | 1992 | CD | |
| Marillion | Kayleigh | 1996 | CD | |
| Marillion | Radiation | 1998 | CD | |
| Marillion | Early Stages | 2009 | 6CD | |
| Marley, Ziggy and the Melody Makers | Tomorrow people | 1988 | CDEP | |
| Mars Volta, The | De-loused in the comatorium | 2003 | CD | |
| Mars Volta, The | Frances the mute | 2005 | CD | |
| Martha Reeves and the Vandellas | Greatest hits | 1988 | CD | |
| Master's Apprentices | Master's Apprentices (1989) bootleg | – | CD | |
| Masterstroke | Turn away | 2007 | CDS | |
| Matt Pistol Project | Things you shouldn't say | 2002 | CDEP | |
| Matti Mustosen Ihmeellinen Orkesteri | Demo | 2008 | CDEP | |
| Maunu Aatos | Demo | – | CDEP | |
| Maunu Aatos | Omaan vajetta, arvaan | 2001 | CDEP | |
| Maxi Priest | Goodbye to love again | 1988 | CDEP | |
| May Blitz | The 2nd of may | 1971 | CD | |
| May I Cry | Demo - Destny and despair | – | CDS | |
| May I Cry | Demo | 2005 | CDEP | |
| Mayall, John | John Mayall | – | CD | |
| Mayall, John | The Collection | 1986 | CD | |
| Mayfield, Curtis | Curtis | 1970 | CD | |
| Mayfield, Curtis | Roots | 1971 | CD | |
| Mayfield, Curtis | Curtis Live (1971) / Curtis in Chicago | 1973 | CD | |
| Mayfield, Curtis | There's no place like America today | 1975 | CD | |
| Mayfield, Curtis | Superfly (1972) / Short eyes | 1977 | CD | |
| MC Pöly | Viaton | 2004 | CDS | |
| MC Pöly | Ilman sua | 2005 | CDS | |
| MC5 | Motor city is burning | – | CD | |
| MC5 | Kick out the jams | 1969 | CD | |
| MC5 | Back in the USA | 1970 | CD | |
| Meat Loaf | Bat out of hell | 1977 | CD | |
| Meat Loaf | Dead ringers | 1981 | CD | |
| Meat Loaf | Hits out of hell | 1986 | CD | |
| Meat Loaf | Rock'n'roll hero | 1996 | CD | |
| Medeia | Quantum holocaust world domination | 2006 | CD | |
| Medusa | Demo 2 | 2002 | CDS | |
| Megadeth | Rust in peace | 1990 | CD | |
| Megadeth | Youthanasia | 1994 | CD | |
| Mehmet Scholl | Demo | – | CDS | |
| Mellencamp, John | The Lonesome jubilee | 1987 | CD | |
| Mellencamp, John | Big daddy | 1989 | CD | |
| Mellencamp, John | Get a leg up | 1991 | CDEP | |
| Mellencamp, John | Love and happiness | 1991 | CDEP | |
| Mellencamp, John | Whenever we wanted | 1991 | CD | |
| Mellencamp, John | Skin it back | 2000 | CD | |
| Mellow Yellow | Teonanacatl | – | CD | |
| Memmy Posse | Pohjat | 2004 | CDS | |
| Mendelssohn | Symphony No. 4 in A, Op. 90 "Italian" | 1987 | CD | |
| Mendelssohn | Sogno di una notte? | 1989 | CD | |
| Mental Market | Spooky | 2000 | CD | |
| Metallica | Kill 'em all | 1983 | CD | |
| Metallica | Ride the lightning | 1984 | CD | |
| Metallica | Master of puppets | 1986 | CD | |
| Metallica | ?and justice for all | 1988 | CD | |
| Metallica | Metallica | 1991 | CD | |
| Metallica | Garage Inc | 1996 | CD | |
| Metallica | Load | 1996 | CD | |
| Metallica | Until it sleeps | 1996 | CDEP | |
| Metallica | ReLoad | 1997 | CD | |
| Metallica | Bay area thrashers - The early days | 1998 | CD | |
| Metallica | S & M | 1999 | CD | |
| Metallica | Live shit: Binge & purge | 2003 | 3CD | ≡ |
| Metallica | St. Anger | 2003 | CD | |
| Metallica | Death magnetic | 2008 | CD | |
| Meters, The | Look-ka py py | 1969 | CD | |
| Meters, The | The Meters | 1969 | CD | |
| Meters, The | Struttin | 1970 | CD | |
| Meters, The | Gabbage Alley | 1972 | CD | |
| Meters, The | Rejuvanation | 1974 | CD | |
| Meters, The | Fire on the bayou | 1975 | CD | |
| Meters, The | Trick bag | 1976 | CD | |
| Meters, The | New directions | 1977 | CD | |
| Meters, The | Funky Miracle | 1997 | 2CD | |
| Metrosexual Skeletor Motors | Daddy's debauchtory | 2006 | CD | |
| Metsatöll | Lahinguväljal näeme, raisk! | 2006 | CD+DVD | |
| Micro | Demo | 2006 | CDS | |
| Miehuuskoe | Demo | 2008 | CDEP | |
| Miehuuskoe | Tässä on edestä päivää | 2008 | CDS | |
| Mighty 44 | Same thing we belive in | 2007 | CDS | |
| Mike | Demo | 2007 | CDS | |
| Mikojan, Matthau | Hell or high water | 2011 | CD | |
| Mikojan, Matthau | Stiletto heels | 2008 | CDS | |
| Mikä! | Demo | – | CDEP | |
| Mild | Mild | 1998 | CDEP | |
| Milestones, The | Queen to me | 2009 | CDS | |
| Miller, Glenn | In the mood | – | CD | |
| Milsestone | Demo | – | CDS | |
| Mind Abduction | Demo | 2004 | CDEP | |
| Mind Infection | Already gone | 2008 | CDS | |
| Mind of Doll, The | Innocent | 2006 | CDS | |
| Mind-A-Stray | Sign of victory | 2005 | CDS | |
| Minerva | Viaton | 2000 | CDEP | |
| Minerva | Pimeän syliin | 2004 | CD | |
| Minoria | Tuomittu | 2004 | CDS | |
| Mirha | Suomi | 2006 | CDS | |
| Miseria | Lost forever | 2005 | CDS | |
| Miseria | Tale neverending | 2007 | CDS | |
| Mishere, Whispered, In Memorial | Demo | 2007 | CDS | |
| Misleds | Ragdoll | 2006 | CDS | |
| Modern Day Citizen | From the shell | 2012 | CD | |
| Mokoma | Seitsemän sinetin takana | 2001 | CDEP | |
| Molly Grows Up | Victor's stand | 2005 | CDS | |
| Molly Hatchet | Greatest hits | 1990 | CD | |
| Molly Hatchet | Locked and loaded | 2003 | CD | |
| Mondo Bizarro | Demo | – | CDEP | |
| Mondo Bizarro | Demo | – | CDS | |
| Mondo Bizarro | Demo | – | CDS | |
| Mondo Bizarro | Demo - Promotion 2 | – | CD | |
| Mondo Bizarro | Back with a mean kick | 2005 | CDEP | |
| Mondo Bizarro | Happy halloween ladies | 2007 | CDEP | |
| Mondo Bizarro | Ten years after | 2009 | CDEP | |
| Monitors Alive | Speech | 2006 | CDS | |
| Monitors Alive | Monitors Alive | 2007 | CDS | |
| Monkees, The | Hey hey we're The Monkees | 1988 | CD | |
| Moody Blues, The | Collection | 1986 | CD | |
| Moonglows, The | Sincerely | – | CD | |
| MoonMadness | MoonMadness | 2005 | CDS | |
| MoonMadness | Thunder | 2005 | CDS | |
| Moore, Gary | After the war | 1988 | CD | |
| Morrison, Van | Blowin' your mind | 1967 | CD | |
| Morrison, Van | Astral weeks | 1968 | CD | |
| Morrison, Van | Moondance | 1970 | CD | |
| Morrison, Van | His band and the Street Choir | 1971 | CD | |
| Morrison, Van | Tupelo honey | 1971 | CD | |
| Morrison, Van | Saint Dominic's preview | 1972 | CD | |
| Morrison, Van | Hard nose the highway | 1973 | CD | |
| Morrison, Van | It's too late to stop now Live | 1974 | CD | |
| Morrison, Van | Veedon fleece | 1974 | CD | |
| Morrison, Van | A period of transition | 1977 | CD | |
| Morrison, Van | Wavelength | 1978 | CD | |
| Morrison, Van | Into the music | 1979 | CD | |
| Morrison, Van | Common one | 1980 | CD | |
| Morrison, Van | Beautiful vision | 1982 | CD | |
| Morrison, Van | Inarticulate speech of the heart | 1983 | CD | |
| Morrison, Van | Live at the Grand Opera House Belfast | 1984 | CD | |
| Morrison, Van | A sense of wonder | 1985 | CD | |
| Morrison, Van | No guru, no method, no teacher | 1986 | CD | |
| Morrison, Van | Poetic Champions compose | 1987 | CD | |
| Morrison, Van | Irish Heartbeat | 1988 | CD | |
| Morrison, Van | Avalon sunset | 1989 | CD | |
| Morrison, Van | Enligtenment | 1990 | CD | |
| Morrison, Van | The Best of Van Morrison | 1990 | CD | |
| Morrison, Van | Hymns to the silence | 1991 | CD | |
| Morrison, Van | Why must I always explain? | 1991 | CDEP | |
| Morrison, Van | The Lost tapes - volume 1 | 1992 | CD | |
| Morrison, Van | The Lost tapes - volume 2 | 1992 | CD | |
| Morrison, Van | Too late in exile | 1993 | CD | |
| Morrison, Van | A nigth in San Francisco | 1994 | CD | |
| Morrison, Van | Days like this | 1995 | CD | |
| Morrison, Van | How long has this been going on | 1996 | CD | |
| Morrison, Van | Spanish rose | 1996 | CD | |
| Morrison, Van | The healing game | 1997 | CD | |
| Morrison, Van | The Filosopher's stone | 1998 | CD | |
| Morrison, Van | Back on the top | 1999 | CD | |
| Morrison, Van | Brown eyed girl | 2000 | 3CD | |
| Morrison, Van | Midnight Special | 2000 | CD | |
| Morrison, Van | The Early years 67-68 | 2000 | CD | |
| Morrison, Van | The Skiffle sessions - Live in Belfast | 2000 | CD | |
| Morrison, Van | You win again | 2000 | CD | |
| Morrison, Van | Down the road | 2002 | CD | |
| Morrison, Van | What's wrong with this picture? | 2003 | CD | |
| Morrison, Van | Magic time | 2005 | CD | |
| Morrison, Van | Pay the Devil/Live at the Ryman | 2006 | CD+DVD | |
| Mother Agony | Demo | – | CDS | |
| Mothers Against Sex Association | Shut up and look stupid | 1997 | CDEP | |
| Motörhead | Ace of spades | 1980 | CD | |
| Motörhead | The best of | 1993 | CD | |
| Motörhead | Live & Loud | 1995 | CD | |
| Motörhead | Aftershock tour edition | 2014 | CD | |
| Mountain | The Best of the Mountain | 1973 | CD | |
| Mountain | Super hits | 1998 | CD | |
| Mozart, Wolfgang Amadeus | Sinfonien Nos. 35 - 40 - 41 "Jupiter" | 1971 | CD | |
| Mozart, Wolfgang Amadeus | Don Giovanni ouverture? | 1989 | CD | |
| Mozart, Wolfgang Amadeus | Sinfonia N. 1? | 1989 | CD | |
| Mud | The Best of Mud | 1996 | CD | |
| Multimediakonsultit | Demo | – | CDEP | |
| Multimediakonsultit | Multimediakonsultit | 2003 | CD | |
| Multimediakonsultit | Osastopäällikkö Matti | 2003 | CDS | |
| Multimediakonsultit | Multimediakonsultit | 2004 | CD | |
| Multimediakonsultit & Helge Kontio | Kun päättyy työ | 2006 | CDS | |
| Mummypowder | The Heavyweight champions | 1999 | CD | |
| Murena | Metonin jakso | 2007 | CD | |
| Murgeli | Demo | 2000 | CDEP | |
| Murhe | Terapian tarpeessa? | 2006 | CDEP | |
| Murmansk | Chinese locks | 2008 | CD | |
| MursuSikari | MursuSikari | 2016 | Muu | ≡ |
| Musta Mökki | Tuulen lapset | 2015 | CDS | |
| Mustavalkoiset värikuvat | Rakkauden meri | 2000 | CDS | |
| My Forever | Demo | 2007 | CDS | |
| My Sweet Sorrow | Demo | – | CD | |
| Myne | Demo | 2003 | CDS | |
| Myrha | Demo | – | CDS | |
| Myyt | Diiva | 2000 | CDEP | |
| Myyt | Demo | 2001 | CDS | |
| Mäkinen, Erkki | Liehuva liekinvarsi | 1999 | CD | |
