| Mad Caddies | Consentual Selections | 2010 | CD | |
| Maj Karma | Kyynel | 2004 | CDS | |
| Maj Karma | Sodankylä | 2004 | CD | |
| Maj Karma | Sarvia ja hampaita | 2005 | CDS | |
| Maj Karma | Ukkonen | 2006 | CD | |
| Maj Karma | Salama | 2009 | CD | |
| Maj Karma | Peltisydän | 2016 | CD | |
| Maj Karman Kauniit Kuvat | Iskelmä | 1998 | CDEP | |
| Maj Karman Kauniit Kuvat | Kaakao | 1998 | CD | |
| Maj Karman Kauniit Kuvat | Ääri | 2000 | CD | |
| Maj Karman Kauniit Kuvat | Rautaneito | 2001 | CD | |
| Maj Karman Kauniit Kuvat | Rocktähti | 2002 | CDS | |
| Maj Karman Kauniit Kuvat | Katutyttöjen laulu | 2003 | CDS | |
| Maj Karman Kauniit Kuvat | Metallisydän | 2003 | CD | |
| Maj Karman Kauniit Kuvat | Musta Paraati | 2004 | CDEP | |
| Maj Karman Kauniit Kuvat | Metallisydän (remaster) | 2008 | CD | |
| Mama King, The | The Mama King | 2007 | CDEP | |
| Mama King, The | Supertender | 2010 | CD | |
| Manfred Mann | Manfred The Musicmann | 1967 | LP | |
| Manfred Mann's Earth Band | The Good Earth | 1974 | LP | |
| Manifesto Jukebox | Remedy | 2002 | CD | |
| Mann, Herbie | Herbie Mann Plays | 1954 | CD | |
| Mannhai | The Sons of Yesterday's Black Grouse | 2001 | CD | |
| Mannhai | Evil Under the Sun | 2002 | CD | |
| Mannhai | The Exploder | 2004 | CD | |
| Mannhai | Hellroad Caravan | 2006 | CD | |
| Marcy Playground | Marcy Playground | 1997 | CD | |
| Marcy Playground | Shapeshifter | 1999 | CD | |
| Maria Gasolina | Se jokin | 2006 | CD | |
| Maria Gasolina | Mä olen sun | 2008 | CD | |
| Maria Gasolina | Dooyo / Lemmenjuoni | 2013 | 7" | |
| Marika Ara Band | Going | 2008 | CD | |
| Marillion | Marbles | 2004 | CD | |
| Marillion & Positive Light | Tales from The Engine Room | 1998 | CD | |
| Mariska | Toisin sanoen | 2002 | CD | |
| Mariska | Memento Mori | 2004 | CD | |
| Mariska | Suden hetki | 2005 | CD | |
| Mariska ja Pahat sudet | Mariska ja Pahat sudet | 2010 | CD | |
| Markscheider Kunst | Dance | 2001 | CDEP | |
| Martikainen, Jarkko | Mierolainen | 2004 | CD | |
| Martikainen, Jarkko | Rakkaus | 2006 | CD | |
| Martikainen, Jarkko | Hyvää yötä, hyvät ihmiset | 2007 | CD | |
| Martikainen, Jarkko | Koirien taivas | 2014 | CD | |
| Martikainen, Jarkko ja Luotetut miehet | Kierrätyspiste | 2016 | CDEP | |
| Martin, Roni & Jukka Orma Tanssiinkutsu | Maailmasta | 2004 | CD | |
| Maryland | Wreck | 2001 | CDEP | |
| Maryland | Rob & Jones Classic | 2002 | CD | |
| Maryland | Almond of Life | 2004 | CD | |
| Maryland | Chasing Me | 2004 | CDS | |
| Maryland | Dance The Night Away | 2004 | CDS | |
| Mastodon | Leviathan | 2004 | CD | |
| Mastodon | Blood Mountain | 2006 | CD | |
| Mastodon | Call of the Mastodon | 2006 | CD | |
| Mastodon | Crack the Skye | 2009 | CD | |
| Mastodon | The Hunter | 2011 | CD+DVD | |
| Maxim | Fallen Angel | 2005 | CD | |
| Maxwell, Nathen & The Original Bunny Gang | White Rabbit | 2009 | CD | |
| Mayall, John and The Bluesbreakers | A Hard Road | 1967 | CD | |
| Mayall, John and The Bluesbreakers | Bare Wires | 1968 | CD | |
| Mayall, John with Eric Clapton | Blues Breakers | 1966 | CD | |
| Mayfield, Curtis | Something to Believe in | 1980 | CD | |
| McCullough, Rab | Belfast Blues | 2001 | CD | |
| Meanest Man Contest | Merit | 2002 | CD | |
| Medeski, Martin & Wood | Combustication | 1998 | CD | |
| Melech Mechaya | Melech Mechaya | 2012 | CD | |
| Melrose | Melrose | 1986 | CD | |
| Melrose | Got It Made | 2015 | LP | |
| Melvins | Houdini | 1993 | CD | |
| Metallica | Kill 'em All | 1983 | CD | ≡ |
| Metallica | Metallica | 1991 | CD | |
| Metallica | Load | 1996 | CD | |
| Metallica | Reload | 1997 | CD | |
| Meters, The | The Meters | 1969 | CD | |
| Metsatöll | Hiiekoda | 2004 | CD | |
| Micragirls, The | Feeling Dizzy Honey?! | 2006 | CD | |
| Mighty Mighty Bosstones, The | A Jackknife to a Swan | 2002 | CD | |
| Mighty Mighty Bosstones, The | The Magic of Youth | 2011 | CD | |
| Migraine | Little Luxury | 1994 | CD | |
| Mika | Life in Cartoon Motion | 2007 | CD | |
| Mika | The Boy Who Knew too Much | 2009 | CD | |
| Mika | The Origin of Love | 2012 | 2CD | |
| Milestones, The | Higher Mountain - Closer Sun | 2014 | CD | |
| Mojomatics, The | A Sweet Mama Gonna Hoodoo Me | 2006 | LP | |
| Mokoma | Valu | 1999 | CD | |
| Mokoma | Mokoman 120 päivää | 2001 | CD | |
| Moment After Scarlet | Sins Written Down | 2002 | CDEP | |
| Mondo Generator | A Drug Problem that Never Existed | 2003 | CD | |
| Mondo Generator | Cocaine Rodeo | 2009 | 2CD | |
| Monkees, The | I'm a Believer / (I'm Not Your) Stepping Stone | 1966 | 7" | |
| Monochromatic | In Color | 2002 | CD | |
| Monochromatic | Read My Mind | 2003 | CDEP | |
| Monochromatic | Holding the Sun | 2004 | CDEP | |
| Monroe, Marilyn | Marilyn | 1998 | CD | |
| Montgomery, Wes | 'Round Midnight | 1965 | CD | |
| Monty Python's Flying Circus | The Worst of Monty Python's Flying Circus | 1970 | LP | |
| Moon Cakes | Xtra Xcellent | 2011 | CD | |
| Mooncakes | Golden Days | 1994 | CD | |
| Moore, Gary | Rockin' Every Night - Gary Moore Live in Japan | 1986 | CD | |
| Moore, Gary | Blues Alive | 1993 | CD | |
| Moore, Gary | Power of the Blues | 2004 | CD | |
| Moore, Gary | Old New Ballads Blues | 2006 | CD | |
| Moore, Gary | Blues for Jimi | 2012 | 2LP | |
| Morley | Morley | 2005 | CD | |
| Morley | We Slept Through The Storm | 2007 | CD | |
| Morley | For Good - Again | 2010 | CD | |
| Morricone, Ennio | A Fistfull Of Dollars/For A Few Dollars More | 1968 | LP | |
| Moses Hazy | The Incredible Flow of Life Show | 2006 | CD | |
| Moses Hazy | Break It Down Or Shake It Loose | 2007 | CD | |
| Moses Hazy | Better Beware | 2011 | CD | |
| Mother Goose | Autumn Masochism | 2004 | CD | |
| Mother Goose | Obvious Works | 2005 | CD | |
| Mother Goose | Anna Lumena | 2009 | CD | |
| Mother Hips | Shootout | 1996 | CD | |
| Moto | Crossover | 2006 | CD | |
| Moto | No Sleep 'Til Turku | 2012 | CD | |
| Motor Boys Motor | Motor Boys Motor | 1982 | CD | |
| Motörhead | On Parole | 1976 | CD | |
| Motörhead | Motörhead | 1977 | CD | |
| Motörhead | Motörhead | 1977 | 2LP | |
| Motörhead | Bomber | 1979 | CD | |
| Motörhead | Bomber | 1979 | 2LP | |
| Motörhead | Overkill | 1979 | CD | |
| Motörhead | Overkill | 1979 | LP | |
| Motörhead | Ace of Spades | 1980 | CD | |
| Motörhead | Ace of Spades | 1980 | LP | |
| Motörhead | Ace of Spades | 1980 | 3LP | |
| Motörhead | Beer Drinkers & Hell Raisers | 1980 | 12" | |
| Motörhead | No Sleep 'till Hammersmith | 1981 | CD | |
| Motörhead | Iron Fist | 1982 | CD | |
| Motörhead | Another Perfect Day | 1983 | CD | |
| Motörhead | What's Words Worth? - Recorded Live 1978 | 1983 | LP | |
| Motörhead | The Birthday Party | 1985 | DVD | |
| Motörhead | Orgasmatron | 1986 | CD | |
| Motörhead | Rock 'n' Roll | 1987 | CD | |
| Motörhead | Nö Sleep At All | 1988 | CD | |
| Motörhead | Welcome to the Beartrap | 1990 | CD | |
| Motörhead | 1916 | 1991 | CD | |
| Motörhead | March ör Die | 1992 | CD | |
| Motörhead | Live & Loud | 1995 | CD | |
| Motörhead | Sacrifice | 1995 | CD | |
| Motörhead | Sacrifice | 1995 | LP | |
| Motörhead | Overnight Sensation | 1996 | CD | |
| Motörhead | Overnight Sensation | 1996 | LP | |
| Motörhead | Snake Bite Love | 1998 | CD | |
| Motörhead | Snake Bite Love | 1998 | LP | |
| Motörhead | We Are Motörhead | 2000 | CD | |
| Motörhead | Hammered | 2002 | CD | |
| Motörhead | Kiss of Death | 2006 | CD | |
| Motörhead | Motörizer | 2008 | CD | |
| Motörhead | The Wörld is Yours | 2010 | CD | |
| Motörhead | The Wörld Is Ours - Vol 1 | 2011 | Blu-ray | |
| Motörhead | The Wörld Is Ours - Vol 2 | 2012 | DVD | |
| Motörhead | Aftershock | 2013 | CD | |
| Motörhead | Bad Magic | 2015 | LP | |
| Motörhead | Clean Your Clock | 2016 | CD | |
| Mountain | Twin Peaks | 1974 | CD | |
| Mountain | Twin Peaks | 1974 | 2LP | |
| Mountain | Super Hits | 1998 | CD | |
| Mr. Bungle | Disco Volante | 1995 | CD | |
| Mr. Bungle | California | 1999 | CD | |
| Muddy Waters | More Real Folk Blues | 1967 | LP | |
| Muddy Waters | Hard Again | 1977 | CD | |
| Muddy Waters | Hard Again | 1977 | LP | |
| Muddy Waters | I'm Ready | 1978 | CD | |
| Multimediakonsultit | Multimediakonsultit | 2003 | CD | |
| Multimediakonsultit | Uimahallilta ostostielle | 2006 | CD | |
| Muphy, JF & Salt | JF Murphy & Salt | 1972 | LP | |
| Muse | Black Holes and Revelations | 2006 | CD | |
| Musta paraati | Peilitalossa | 1983 | CD | |
| Mutants, The | Mutants Death Cult | 2005 | CD | |
| Mutants, The | Grave Groove | 2007 | CD | |
| My Chemical Romance | I Brought You My Bullets, You Brought Me Your Love | 2002 | CD | |
| My Chemical Romance | Three Cheers for Sweet Revenge | 2004 | CD | |
| My Chemical Romance | The Black Parade | 2006 | CD | |
| My Chemical Romance | The Black Parade Is Dead! | 2008 | CD+DVD | |
| My Chemical Romance | Danger Days: The True Lives of the Fabulous Killjoys | 2010 | CD | |
| Mäki, Kristiina | Yksinäinen pihlaja / Jokijärven valssi | 1991 | 7" | |
| Möller, Mats | Det jag ångar mest | 2006 | CDS | |
