| M | Pop Muzik | 1979 | MCA 413 | 7" | |
| M People | Ultimate Collection | 2005 | | CD | ≡ |
| Maailmanloppu / Kuudes Silmä | Split Ep | 2014 | CRI105 | 7" | ≡ |
| Maarit | Viis' Pientä | 1975 | LRLP128 | LP | |
| Maarit | Siivet Saan | 1978 | DIGLP 3 | LP | |
| Maarit | Nykyajan Lapsi | 1980 | DIGLP 7 | LP | |
| Maarit | Good Days, Bad Days | 2004 | | CD | |
| Machine Head | The Burning Red | 1999 | | CD | |
| Machine Head | Through The Ashes Of Empires | 2003 | | 2CD | ≡ |
| Machine Head | Days turn blue to gray | 2004 | | CDS | |
| Machine Head | The Blackening | 2007 | | CD+DVD | |
| Macklemore & Ryan Lewis | The Heist | 2013 | - | CD | |
| Mad Season | Above | 1995 | 478507 2 | CD | |
| Madame George | What's Happening | 1977 | LRLP 229 | LP | |
| Madonna | Confessions On A Dance Floor | 2005 | | CD | |
| Madonna | Celebration | 2009 | | CD | |
| Madonna | Revolver (remixes) | 2009 | | CDEP | |
| Magazine | Secondhand Daylight | 1979 | V 2121 | LP | |
| Maj Karman Kauniit Kuvat | Metallisydän | 2003 | | CD | |
| Makeba, Miriam | Mama Africa | 2013 | METRSL077 | 2CD | |
| Mama King, the | Supertender | 2010 | | CD | |
| Mamba | Vaaran Vuodet 1984-1999 | 1999 | | 2CD | |
| Mana Mana | Complete... Kaikki | 2000 | | CD | |
| Manic Street Preachers | Generation Terrorists | 1992 | | CD | |
| Manic Street Preachers | The Everlasting | 1998 | | CDS | |
| Manic Street Preachers | This Is My Truth, Tell Me Yours | 1998 | | CD | |
| Manic Street Preachers | The Masses Against the Classes | 1999 | | CDS | |
| Manic Street Preachers | You Stole the Sun From My Heart | 1999 | | CDS | |
| Manic Street Preachers | Forever Dalayed - Greatest Hits (special ed) | 2002 | | 2CD | |
| Manic Street Preachers | Forever Delayed | 2002 | | 2CD | ≡ |
| Manic Street Preachers | Lipstick Traces (digipack) | 2003 | | 2CD | |
| Manic Street Preachers | Futurology | 2014 | 88843056612 | 2CD | |
| Manic Street Preachers | Futurology | 2014 | 88843049621 | LP | |
| Mann, Aimee | Lost In Space | 2002 | | CD | |
| Manna | Sing For You | 2007 | | CDS | |
| Manu Chao | La Radiolina | 2007 | | CD | |
| Marcus | S/T | 1976 | 28.272-1 | LP | ≡ |
| Marillion | Real To Reel | 1984 | JEST 1 | LP | |
| Marillion | The Best Of Both Worlds | 1997 | | 2CD | |
| Marillion | The Positive Light - Tales From The Engine Room | 2005 | | CD | |
| Marillion | Misplaced Childhood | 2013 | VEJ 2403401 | LP | |
| Marilyn Manson | Mechanical Animals | 1998 | | CD | |
| Marilyn Manson | Holy Wood | 2000 | | CD | |
| Marilyn Manson | Most Famous Hits | 2003 | | DVD | |
| Marilyn Manson | The Golden Age Of Grotesque | 2003 | | CD | |
| Marilyn Manson | Eat Me, Drink Me | 2007 | | CD | |
| Marilyn Manson | The Pale Emperor | 2015 | COOKLP602 | 2LP | ≡ |
| Marky Mark & The Funky Bunch | You Gotta Believe | 1992 | 7567-92203-1 | LP | |
| Marley, Bob | Trench Town Rock | 1996 | | CD | |
| Marley, Bob & The Wailers | Shakedown | 1979 | SH-8002 | LP | ≡ |
| Marley, Bob & The Wailers | Could You Be Loved | 1980 | S 101 968 | 7" | |
| Marley, Ziggy And The Melody Makers | One Bright Day | 1998 | VI 645832 | CD | |
| Maroon 5 | Songs About Jane | 2003 | | CD | |
| Maroon 5 | It Won`t Be Soon Before Long | 2007 | | CD | |
| Martikainen, Jarkko | Mierolainen | 2005 | | CD | ≡ |
| Martikainen, Jarkko | Rakkaus | 2006 | | CD | |
| Martikainen, Jarkko | Rakkaus | 2006 | LONG-017 | LP | |
| Martikainen, Jarkko | Toivo | 2009 | | CD | ≡ |
| Martikainen, Jarkko | Toivo | 2009 | TOIVO-001 | LP | |
| Martikainen, Jarkko | Huominen on Kaukana | 2011 | | CDS | ≡ |
| Martikainen, Jarkko | Usko | 2011 | | CD | ≡ |
| Martikainen, Jarkko | Usko | 2011 | SKR-033 DLX | CD+DVD | |
| Martin, Dean | Forever Cool | 2007 | | CD+DVD | |
| Martin, Roni & Orma, Jukka Tanssiinkutsu | Maailmasta | 2004 | VELVECD 28 | CD | |
| Martti Vainaa & Sallitut Aineet | Toinen Nainen | 2007 | | CDS | |
| Massive Attack | V Mad Professor | 1995 | | CD | |
| Massive Attack | 100th Window | 2003 | | CD | |
| Mayfield, Curtis | Super Fly | 1972 | CRS 8014 ST | LP | |
| Mc Coy, Andy | R`n`R Memorabilia | 2003 | | 2CD | |
| McCartney, Paul | Flaming Pie | 1997 | | CD | |
| McCartney, Paul | Run Devil Run | 1999 | | CD | |
| McCartney, Paul | Driving Rain | 2001 | | CD | |
| McCoy, Andy | Building On Tradition | 1995 | AMTCD 2069 | CD | |
| McGregor, John | Joki | 2005 | SMCD001 | CD | |
| McLean, Don | American Pie | 1979 | 1C 038 1575551 | LP | |
| Meat Loaf | Bat Out Of Hell | 1977 | EPC 82419 | LP | |
| Meat Loaf | I'd Do Anything For Love (But I Won't Do That) | 1993 | VSCDT 1443 | CDS | |
| Megadeth | Peace Cells...But Who's Bying? | 1986 | | CD | |
| Megadeth | So Far, So Good... So What! | 1988 | | CD | |
| Megadeth | Rust in Peace | 1990 | | CD | |
| Megadeth | Youthanasia | 1994 | | CD | |
| Megadeth | Cryptic Writings | 1997 | | CD | ≡ |
| Megadeth | Trust | 1997 | | CDEP | |
| Mellencamp, John | Whenever We Wanted | 1991 | | CD | |
| Melua, Katie | Piece By Piece | 2005 | | CD | |
| Melvin, Harold & The Blue Notes | Now Is The Time | 1977 | AA-1041 | LP | |
| Men At Work | Business As Usual | 1981 | | CD | ≡ |
| Menken, Alan & Ashman, Howard | Little Shop Of Horrors - Original Motion Picture Soundtrack | 1986 | 924 125-1 | LP | |
| Mercury, Freddie | The Very Best Of Freddie Mercury Solo | 2006 | | CD | |
| Merriweather, Nathaniel | Presents Lovage – Music To Make Love To Your Old Lady By | 2001 | AKCD5052 | CD | |
| Metallica | Kill Èm All | 1983 | | CD | |
| Metallica | Master Of Puppets | 1986 | | CD | |
| Metallica | And Justice For All | 1988 | | CD | |
| Metallica | Load | 1996 | | CD | |
| Metallica | S&M | 1999 | | 2CD | |
| Metallica | St. Anger | 2003 | | CD | |
| Metallica | Some Kind Of Monster | 2004 | | 2DVD | |
| Metallica | Live At San Diego 1992 | 2005 | | DVD | |
| Meurman, Kristian | Ensiaskeleet | 2007 | | CD | |
| MEW | And The Glass Handed Kites | 2005 | 82876736602 | CD | |
| MEW | Mo More Stories | 2009 | | CDEP | |
| Mighty44 | Headbanger | 2004 | | CD | |
| Mika | Life In Cartoon Motion | 2007 | | CD | |
| Mikojan, Matthau | Chasing Ghosts | 2008 | | CDS | |
| Mikojan, Matthau | Too Fortunate To Cry + Live At Cosmic Studios 2008 | 2008 | | CDS | |
| Millencolin | For Monkeys | 1997 | | CD | |
| Minerva | Kahleet Katkaistaan | 2002 | | CDS | |
| Minerva | Ennen Kuin Valkenee | 2003 | | CD | |
| Minerva | Pimeän Syliin | 2004 | | CDEP | |
| Mingus Dynasty | Live @ Montreux | 1981 | | LP | |
| Mingus, Charles | Shuffle Bass Boogie | 2001 | | CD | |
| Ministry | With Sympathy | 1983 | ARCD 8016 | CD | |
| Ministry | The Mind Is A Terrible Thing To Taste | 1989 | | CD | |
| Mitchell, Joni | The Hissing Of Summer Lawns | 1975 | 7E-1051 | LP | ≡ |
| Mitchell, Joni | Love Has Many Faces | 2014 | R2 544846 | 4CD | |
| Moby | Play | 1999 | CDStumm172 | CD | |
| Moby | Run On | 1999 | | CDS | |
| Moby | Hotel | 2005 | 0724386061003 | CD | |
| Moby | Raining Again | 2005 | | CDS | |
| Moby | Slipping Away | 2006 | 12mute365 | 12" | |
| Moby | Wait For Me | 2009 | Idiot001 | CD | |
| Modjo | Lady (Hear Me Tonight) | 2000 | | CDS | |
| Mogwai | Friend Of The Night | 2006 | PIASX064S | 7" | |
| Mogwai | Mr. Beast | 2006 | PIASX062CDLTD | CD+DVD | ≡ |
| Mogwai | Mr. Beast (slipcase promo) | 2006 | | CD | |
| Mogwai | Les Revenants | 2013 | ROCKACT74LP | LP | |
| Mogwai | Rave Tapes | 2014 | ROCKACT80 | Muu | ≡ |
| Mokoma | Kurimus | 2003 | | CD | |
| Mokoma | Kurimus | 2003 | | CD | |
| Mokoma | Kuoleman Laulukunnaat | 2006 | | CD | |
| Mokoma | Luihin Ja Ytimiin (LTD) | 2007 | | CD | |
| Mokoma | Sydänjuuret | 2010 | | CD | |
| Mokoma | Sydänjuuret | 2010 | SKR027DLX | CD | ≡ |
| Mokoma | Varjopuoli | 2011 | | CD | |
| Mokoma | Varjopuoli | 2011 | SKRLP-034 | LP | |
| Moment After Scarlett | Delerium And Her Daughter | 2004 | | CD | |
| Monroe, Marilyn | I Wanna Be Loved By You | 1978 | UP 36484 | 7" | |
| Monroe, Marilyn | I Wanna Be Loved By You | 2001 | | 2CD | |
| Monroe, Michael | Nights are so long | 1988 | | CD | |
| Montell, Maria | And So The Story Goes... | 1996 | | CD | |
| Moody Blues, the | On The Treshold OF A Dream | 1969 | SML.1035 | LP | |
| Moody Blues, The | Every Good Boy Deserves Favour | 1971 | | CD | |
| Moody Blues, The | The Moody Blues | 1979 | 6.24004 AL | LP | |
| Moody Blues, The | Long Distance Voyager | 1981 | | LP | |
| Moonspell | Wolfheart (digipack) | 1995 | | CD | |
| Moonspell | Irreligious | 1996 | | CD | |
| Moonspell | 2cond Skin (digipack) | 1997 | | 2CD | |
| Moonspell | The Butterfly Effect (digipack) | 1999 | | CD | |
| Moonspell | Darkness And Hope | 2001 | | CD | |
| Moonspell | Finisterra (slipcase promo) | 2006 | | CDS | ≡ |
| Moonspell | Memorial (digipack) | 2006 | | CD | |
| Moonspell | Irreligious | 2007 | 77699-8 | 2CD | ≡ |
| Moonspell | The Great Silver Eye | 2007 | | CD | |
| Moonspell | Under Satanae | 2007 | | CD | |
| Moonspell | Night Eternal | 2009 | SPV 95741 2LP | 2LP | |
| Moonspell | Under The Moonspell | 2013 | FL60 | 12" | |
| Moonspell | Extinct | 2015 | NPR 581 LP | 2LP | |
| Moore, Gary | Dirty Fingers | 1984 | SLP3117 | LP | ≡ |
| Moore, Gary | White Knuckles | 1985 | RAW LP006 | LP | |
| Moore, Gary | Anthology | 1986 | RAWLP 023 | 2LP | |
| Moore, Gary | G-Force / Live At The Marquee | 1988 | TFOLP2 | 2LP | |
| Moore, Gary | Hot & Heavy Metal | 1988 | | 3LP | |
| Moore, Gary | After The War | 1989 | 209 543 | LP | ≡ |
| Moore, Gary | Still Go The Blues | 1990 | V 2612 | LP | |
| Moore, Gary | Still Go The Blues | 1994 | П94 RAT 30840 | LP | ≡ |
| Moore, Gary | Power Of The Blues | 2004 | | CD | |
| Moottörin Jyrinä | On aika mennä nukkumaan | 2010 | | CDS | ≡ |
| Morissette, Alanis | Jagged Little Pill | 1995 | | CD | |
| Morrisette, Alanis | Jagged Little Pill | 1995 | | CD | |
| Morrissey | Viva Hate | 1988 | 064 7 90180 1 | LP | |
| Morrissey | Ringleader of the Tormentors | 2006 | | CD | |
| Morrissey | That`s How People Grow Up (radio promo) | 2007 | | CDS | |
| Mortiis | The Smell Of Rain | 2001 | MOSH 248 CD | CD | |
| Mortiis | The Smell Of Rain | 2001 | MOSH248CD | CD | ≡ |
| Mortiis | The Grudge | 2004 | MOSH280CD | CD | |
| Mortiis | Soul In A Hole | 2005 | MOSH298DVD | DVD | |
| Mos Def | The Ecstatic | 2009 | | CD | |
| Moses Hazy | Better Beware | 2011 | KOOL-004 | CD | |
| Mother Love Bone | Apple | 1990 | 843 191-2 | CD | |
| Mother Love Bone | Mother Love Bone | 2013 | MOVLP800 | 2LP | |
| Motorhomes, The | The Long Distance Runner | 2002 | | CD | |
| Motörhead | Ace of Spades | 1980 | | CD | |
| Mr. Acker Bilk & Norman Chandler Strings | Morning Has Broken / Reggae Girl | – | ISS 116 | 7" | ≡ |
| Mugison | Mugimama Is This Monkey Music? | 2004 | | CD | ≡ |
| múm | Finally We Are No One | 2002 | | CD | ≡ |
| múm | The Peel Session | 2006 | | CDEP | ≡ |
| múm | Sing Along To Songs You Don`t Know | 2009 | | CD | ≡ |
| Muse | Showbiz | 1999 | | CD | |
| Muse | Origin Of Symmetry | 2001 | | CD | |
| Muse | Hullabaloo Soundtrack | 2002 | | 2CD | |
| Muse | Absolution | 2003 | | CD | |
| Muse | Black Holes And Revelations | 2006 | | CD | |
| Muse | Supermassive Black Hole | 2006 | | CDS | |
| Muse | The resistance | 2009 | | CD | |
| Muse | Undisclosed Desires | 2009 | | CDEP | |
| Mustan Kuun Lapset | Suruntuoja | 2001 | | CD | |
| My Dying Bride | 34.788%...Complete | 1998 | CDVILE 74 | CD | |
| My Dying Bride | Like Gods Of The Sun | 2003 | CDVILED 65 | CD | |
| My Dying Bride | For Lies I Sire | 2009 | | CD | |
| My Insanity | Solar Child | 2001 | | CD | |
| My Insanity | Scattered Soul Puzzle | 2005 | | CD | |
