| M.A.R.S. | Project Driver | | 1990 | MC | ≡ |
| M.O.D. | Surfin' M.O.D. | | 1988 | CD | |
| M.O.D. | Gross Misconduct | | 1992 | CD | |
| M.O.D. | Rhythm Of Fear | | 1992 | CD | |
| M.O.D. | Dictated Aggression | | 1996 | CD | |
| M.O.D. | The Rebel You Love To Hate | | 2003 | CD | |
| MacAlpine | Eyes Of The World | | 1990 | CD | |
| Machinae Supremacy | Overworld | | 2008 | CD | |
| Machinae Supremacy | A View From The End Of The World | | 2010 | CD | |
| Machine Head | Burn My Eyes | | 1994 | CD | |
| Machine Head | The More Things Change... | | 1997 | CD | |
| Machine Head | The Burning Red | | 1999 | CD | |
| Machine Head | Supercharger | | 2001 | CD | |
| Machine Head | Throught The Ashes Of Empires | | 2003 | 2CD | |
| Machine Head | The Blackening | | 2007 | CD | |
| Machine Head | Unto The Locust | | 2011 | CD+DVD | |
| Machine Head | Bloodstone & Diamonds | | 2014 | CD | |
| Machine Head | Catharsis | | 2018 | CD | |
| Machine Men | Scars & Wounds | | 2003 | CD | |
| Machine Men | Elegies | | 2005 | CD | |
| Machine Men | Circus Of Fools | | 2007 | CD | |
| Mad Dragzter | Master Of Space And Time | | 2015 | CD | ≡ |
| Mad Hatter's Den | Welcome To The Den | | 2013 | CD | |
| Mad Max | Mad Max | | 1982 | CD | ≡ |
| Mad Max | Rollin' Thunder | | 1984 | LP | |
| Mad Max | Stormchild | | 1985 | CD | |
| Madam X | We Reserve The Right | | 1984 | LP | ≡ |
| Madball | The Best Of Madball | | 2003 | CD | |
| Madder Mortem | All Flesh Is Grass | | 2001 | CD | |
| Madder Mortem | Deadlands | | 2002 | CD | |
| Madder Mortem | Desiderata | | 2006 | CD | |
| Madder Mortem | Eight Ways | | 2009 | CD | |
| Madonna | Like A Virgin | | 1984 | LP | |
| Madonna | The Immaculate Collection | | 1990 | CD | |
| Madonna | Something To Remember | | 1995 | CD | |
| Madonna | Music | | 2000 | CD | |
| Madonna | Confessions On A Dance Floor | | 2005 | CD | |
| Magellan | Impending Ascension | | 1993 | CD | |
| Magenta Skycode | IIIII | | 2006 | CD | |
| Magnum | Marauder | | 1980 | CD | |
| Magnum | On A Storytellers Night | | 1985 | LP | |
| Magnum | Vigilante | | 1986 | CD | |
| Magnum | Mirador | | 1987 | CD | |
| Magnum | Wings Of Heaven | | 1988 | LP | |
| Magnum | Goodnight L.A. | | 1990 | CD | |
| Magnum | The Spirit | | 1991 | CD | |
| Magnum | Breath Of Life | | 2002 | CD | |
| Magnum | Princess Alice And The Broken Arrow | | 2007 | CD | |
| Mahogany Rush | Maxoom | | 1972 | CD | |
| Mahogany Rush | Child Of Novelty | | 1974 | CD | |
| Mahogany Rush | Strange Universe | | 1975 | CD | |
| Mahogany Rush | IV | | 1976 | – | |
| Mahogany Rush | What's Next | | 1980 | LP | |
| Maj Karma | Sodankylä | | 2004 | CD | |
| Maj Karma | Ukkonen | | 2006 | CD | |
| Maj Karma | Salama | | 2009 | CD | |
| Maj Karma | Peltisydän | | 2016 | CD | ≡ |
| 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 | Metallisydän | | 2003 | CD | |
| Maj Karman Kauniit Kuvat | Musta Paraati | | 2004 | CDEP | |
| Majesty | The Crown Of Scorpio | | 1996 | CDEP | |
| Malevolence | Martyrialized | | 2000 | LP | ≡ |
| Malevolent Creation | The Ten Commandments | | 1991 | CD | |
| Malevolent Creation | Envenomed | | 2000 | CD | |
| Malice | License To Kill | | 1986 | CD | |
| Malpractice | Of Shape And Balance | | 1998 | CD | |
| Malpractice | Deviation From The Flow | | 2005 | CD | |
| Malpractice | Triangular | | 2008 | CD | |
| Malpractice | Turning Tides | | 2014 | CD | |
| Mama's Boys | Mama's Boys | | 1984 | LP | |
| Mama's Boys | Power & Passion | | 1985 | LP | |
| Mama's Boys | Growing Up The Hard Way | | 1987 | LP | |
| Mama's Boys | Relativity | | 1992 | CD | |
| Mana Mana | Complete...Kaikki | | 2000 | CD | |
| Mana Mana | Murheen Laakso | | 2000 | CD | |
| Manfred Mann's Earth Band | Solar Fire | | 1973 | LP | ≡ |
| Manfred Mann's Earth Band | The Roaring Silence | | 1976 | LP | |
| Manfred Mann's Earth Band | Solar Fire | | 1973 | CD | |
| Manfred Mann's Earth Band | Nightingales & Bombers | | 1975 | CD | |
| Manfred Mann's Earth Band | Somewhere In Afrika | | 1982 | LP | |
| Manfred Mann's Earth Band | Soft Vengeance | | 1996 | CD | |
| Mania | Wizard Of The Lost Kingdom | | 1988 | LP | |
| Mania | Changing Times | | 1989 | CD | |
| Mania | Changing Times | | 1989 | LP | |
| Manic Street Preachers | Journal For Plague Lovers | | 2009 | Muu | |
| Manilla Road | Open The Gates | | 1985 | CD | ≡ |
| Manilla Road | Mystification | | 1987 | CD | |
| Manilla Road | Atlantis Rising | | 2001 | CD | |
| Manilla Road | Spiral Castle | | 2002 | CD | |
| Manilla Road | Voyager | | 2008 | CD | |
| Manilla Road | Playground Of The Damned | | 2011 | CD | |
| Manilla Road | The Blessed Curse | | 2015 | 2CD | ≡ |
| Manitou | Deadlock | | 2006 | CD | |
| Mannerheim | Feel The Dawn | | 1994 | CD | |
| Mannhai | Evil Under The Sun | | 2002 | CD | |
| Manowar | Battle Hymns | | 1982 | CD | |
| Manowar | Into Glory Ride | | 1983 | CD | |
| Manowar | Hail To England | | 1984 | CD | |
| Manowar | Sign Of The Hammer | | 1984 | CD | |
| Manowar | Fighting The World | | 1987 | CD | |
| Manowar | Kings Of Metal | | 1988 | CD | |
| Manowar | The Hell Of Steel | | 1994 | CD | |
| Manowar | Louder Than Hell | | 1996 | CD | |
| Manowar | Hell On Wheels Live | | 1997 | 2CD | |
| Manowar | Warriors Of The World | | 2002 | CD | ≡ |
| Manowar | Warriors Of The World United | | 2002 | CDS | |
| Manowar | Gods Of War | | 2007 | CD | |
| Manowar | Magic Circle Festival Volume 1 | | 2007 | 2DVD | |
| Manowar | Thunder In The Sky | | 2009 | 2CD | ≡ |
| Manowar | The Lord Of Steel | | 2012 | CD | |
| Manticora | 8 Deadly Sins | | 2004 | CD | |
| Manticora | The Black Circus-Part 1-Letters | | 2006 | CD | |
| Maple Cross | Heimo | | 2007 | CD | |
| Marc Bristol & The Shake Shakers | Let's Shake It!!! | | 1994 | MC | |
| Marillion | Script For A Jester's Tear | | 1983 | LP | |
| Marillion | Misplaced Childhood | | 1985 | CD | |
| Marillion | Clutching At Straws | | 1987 | LP | |
| Marillion | A Singles Collection | | 1992 | CD | |
| Marilyn Manson | Portrait Of An American Family | | 1994 | CD | |
| Marilyn Manson | Smelss Like Children | | 1995 | CD | |
| Marilyn Manson | Antichrist Superstar | | 1996 | CD | |
| Marilyn Manson | Mechanical Animals | | 1998 | CD | |
| Marilyn Manson | Holy Wood | | 2000 | CD | |
| Marilyn Manson | The Golden Age Of Grotesque | | 2003 | CD | |
| Marilyn Manson | Lest We Forget The Best Of | | 2004 | CD | |
| Marilyn Manson | The Pale Emperor | | 2015 | CD | |
| Mariska | Toisin Sanoen | | 2002 | CD | |
| Mariska | Momento Mori | | 2004 | CD | |
| Mariska | Mariska & Pahat Sudet | | 2010 | Muu | |
| Marja Mattlar | Belgiassa | | 1998 | CD | ≡ |
| Marja Mattlar | Lintu Vuodet 1991-2001 | | 2002 | Muu | |
| Mark Morrison | Return Of The Mack | | 1996 | CD | |
| Marky Mark And The Funky Bunch | Music For The People | | 1991 | LP | |
| Martini Ranch | Holy Cow | | 1988 | LP | |
| Masi Alex | Attack Of The Neon Shark | | 1989 | LP | |
| Masi Alex | Vertical Invader | | 1990 | LP | |
| Masquerage | Work-Holic-Fool | | 2006 | CD | |
| Masquerage | Backstabber | | 2012 | CD | |
| Masquerage | Breaking The Masks | | 2016 | CD | |
| Mass | Angel Power | | 1980 | CD | |
| Mass | Swiss Connection | | 1981 | CD | |
| Mass | Metal Fighter | | 1983 | CD | |
| Mass | War Law | | 1984 | CD | |
| Massacre | From Beyond | | 1991 | CD | |
| Master Of Metal | From Worlds Beyond | | 2015 | CD | ≡ |
| Masterplan | Masterplan | | 2003 | 2CD | ≡ |
| Masterplan | Aeronautics | | 2005 | CD | |
| Masterplan | MK II | | 2007 | CD | |
| Masterplan | Time To Be King | | 2010 | CD | |
| Masterplan | Novum Initium | | 2013 | CD | |
| Mastodon | Remission | | 2002 | CD | |
| Mastodon | Leviathan | | 2004 | CD | |
| Mastodon | Blood Mountain | | 2006 | CD | |
| Mastodon | Crack The Skye | | 2009 | CD | |
| Mastodon | The Hunter | | 2011 | CD+DVD | |
| Mastodon | Once More 'Round The Sun | | 2014 | CD | |
| Mastodon | Emperor Of Sand | | 2017 | CD | |
| Mastodon | Hushed And Grim | | 2021 | 2CD | ≡ |
| Matchbox | Midnite Dynamos | | 1980 | LP | |
| Matti & Teppo | Et Voi Tulla Rajan Taa | | 1981 | LP | |
| Matti & Teppo | Matti & Teppo | | 1986 | LP | |
| Matti & Teppo | '87 | | 1987 | LP | |
| Matti & Teppo | 20 Suosikkia | | 1996 | CD | |
| Matti Nykänen | Mäkikotka 50 v. | | 2013 | CDS | |
| Maxx | To The Maxximum | | 1994 | MC | ≡ |
| Mayhem | Grand Declaration Of War | | 2000 | CD | ≡ |
| Mayhem | Daemon | | 2019 | CD | ≡ |
| MC Hammer | Please Hammer Don't Hurt'Em | | 1990 | LP | |
| MC5 | Kick Out The Jams | | 1969 | CD | |
| McAuley Schenker Group | Perfect Timing | | 1987 | CD | |
| McAuley Schenker Group | Save Yourself | | 1989 | CD | |
| McAuley Schenker Group | M.S.G. | | 1992 | CD | |
| MD.45 | The Craving | | 1996 | CD | |
| MD.45 | The Craving | | 1996 | CD | ≡ |
| Meat Loaf | Bat Out Of Hell | | 1977 | CD | |
| Meat Loaf | Dead Ringer | | 1981 | CD | |
| Meat Loaf | Blind Before I Stop | | 1986 | MC | ≡ |
| Meat Loaf | Bat Out Of Hell II:Back Into Hell | | 1993 | CD | |
| Meat Loaf | Bat Out Of Hell 3-The Monster Is Loose | | 2006 | CD | |
| Mecca | Mecca | | 2002 | CD | |
| Medeia | Cult | | 2008 | CD | |
| Medley | Coming Soon... | | 1997 | CDS | |
| Medley | Don't Ask Me | | 1998 | CDS | |
| Megadeth | Killing Is My Business...And Business Is Good | | 1985 | CD | |
| Megadeth | Peace Sells...But Who's Buying? | | 1986 | 2CD | ≡ |
| Megadeth | Peace Sells...But Who's Buying? | | 1986 | LP | |
| Megadeth | Peace Sells...But Who's Buying? | | 1986 | CD | |
| Megadeth | Peace Sells...But Who's Bying? | | 1986 | CD | ≡ |
| Megadeth | So Far, So Good...So What | | 1988 | MC | |
| Megadeth | So Far, So Good...So What | | 1988 | CD | |
| Megadeth | So Far, So Good...So What! | | 1988 | CD | ≡ |
| Megadeth | Rust In Peace | | 1990 | LP | |
| Megadeth | Rust In Peace | | 1990 | CD | |
| Megadeth | Rust In Peace | | 1990 | CD | ≡ |
| Megadeth | Set The World On Fire | | 1991 | CD | ≡ |
| Megadeth | Countdown To Extinction | | 1992 | CD | |
| Megadeth | Countdown To Extinction | | 1992 | CD | ≡ |
| Megadeth | Youthanasia | | 1994 | CD | |
| Megadeth | Youthanasia | | 1994 | CD | ≡ |
| Megadeth | The Other Side | | 1995 | CD | ≡ |
| Megadeth | Megabest | | 1996 | CD | ≡ |
| Megadeth | Cryptic Writings | | 1997 | CD | |
| Megadeth | Cryptic Writings | | 1997 | CD | ≡ |
| Megadeth | Risk | | 1999 | CD | |
| Megadeth | Risk | | 1999 | 2CD | |
| Megadeth | Capitol Punishment | | 2000 | CD | |
| Megadeth | The World Needs A Hero | | 2001 | CD | |
| Megadeth | Rude Awakening | | 2002 | 2CD | |
| Megadeth | Still, Alive...And Well? | | 2002 | CD | |
| Megadeth | The System Has Failed | | 2004 | CD | |
| Megadeth | Greatest Hits:Back To The Start | | 2005 | CD+DVD | |
| Megadeth | Arsenal Of Megadeth | | 2006 | 2DVD | |
| Megadeth | Hidden Treasures | | 2007 | CD | |
| Megadeth | United Abominations | | 2007 | CD | |
| Megadeth | Warchest | | 2007 | Muu | |
| Megadeth | Anthology Set The World A Fire | | 2008 | 2CD | |
| Megadeth | Endgame | | 2009 | CD | |
| Megadeth | Rust In Peace-Live | | 2010 | CD+DVD | |
| Megadeth | Th1rt3en | | 2011 | CD | |
| Megadeth | Super Collider | | 2013 | CD | |
| Megadeth | Dystopia | | 2016 | CD | |
| Megadeth | The Sick, The Dying... And The Dead | | 2022 | CD | |
| Mekong Delta | Mekong Delta | | 1987 | CD | |
| Mekong Delta | The Music Of Erich Zann | | 1988 | CD | |
| Mekong Delta | The Principle Of Doubt | | 1989 | MC | ≡ |
| Mekong Delta | Lurking Fear | | 2007 | CD | |
| Mekong Delta | Intersections | | 2012 | CD | |
| Melanie C | Northern Star | | 1999 | CD | |
| Meliah Rage | Kill To Survive | | 1989 | LP | |
| Meliah Rage | Solitary Solitude | | 1990 | LP | |
| Melidian | Lost In The Wild | | 1989 | MC | ≡ |
| Mellencamp John | Mr Happy Go Lucky | | 1996 | CD | |
| Memento Mori | La Danse Macabre | | 1996 | CD | |
| Memento Mori | Songs From The Apocalypse Vol. IV | | 1997 | CD | |
| Memoriam | For The Fallen | | 2017 | CD | ≡ |
| Memoriam | Requiem For Mankind | | 2019 | LP | |
| Memory Garden | Tides | | 1996 | CD | |
| Memory Garden | Verdict Of Posterity | | 1998 | CD | |
| Memory Garden | Mirage | | 2000 | CD | |
| Memory Garden | Carnage Carnival | | 2008 | CD+DVD | |
| Memory Garden | Doomain | | 2013 | CD | |
| Mental Care Foundation | Alcohol Anthems | | 2005 | CD | |
| Mercenary | 11 Dreams | | 2004 | CD | |
| Mercenary | The Hours That Remain | | 2006 | CD | |
| Mercury Rising | Upon Deaf Ears | | 1994 | CD | |
| Mercy | Witchburner | | 1985 | LP | |
| Mercyful Fate | Don't Break The Oath | | 1984 | CD | |
| Mercyful Fate | Return Of Vampire | | 1992 | CD | |
| Mercyful Fate | In The Shadows | | 1993 | CD | |
| Mercyful Fate | The Bell Witch | | 1994 | CD | |
| Mercyful Fate | Time | | 1994 | CD | |
| Mercyful Fate | Into The Unknown | | 1996 | CD | |
| Mercyful Fate | Dead Again | | 1998 | CD | |
| Mercyful Fate | 9 | | 1999 | CD | |
| Meshuggah | Contradictions Collapse | | 1991 | CD | |
| Meshuggah | None | | 1994 | CDEP | |
| Meshuggah | Destroy Erase Improve | | 1995 | CD | |
| Meshuggah | Chaosphere | | 1998 | CD | |
| Meshuggah | I | | 2004 | CDEP | |
| Meshuggah | ObZen | | 2008 | CD | |
| Meshuggah | Koloss | | 2012 | CD+DVD | ≡ |
| Mesmerize | Stainless | | 2005 | CD | |
| Messiah | Powertrash/Infernal Thrashing | | 2004 | LP | |
| Metal Allegiance | Metal Allegiance | | 2015 | 2LP | ≡ |
| Metal Allegiance | Volume II:Power Drunk Majesty | | 2018 | 2LP | ≡ |
| Metal Church | Metal Church | | 1985 | CD | |
| Metal Church | The Dark | | 1986 | LP | |
| Metal Church | The Dark | | 1986 | CD | |
| Metal Church | Blessing In Disguise | | 1989 | LP | |
| Metal Church | Blessing In Disguise | | 1989 | CD | |
| Metal Church | Human Factor | | 1991 | CD | |
| Metal Church | Hanging In Balance | | 1993 | CD | |
| Metal Church | The Weight Of The World | | 2004 | CD | |
| Metal Church | A Light In The Dark | | 2006 | CD | |
| Metal Church | This Present Wasteland | | 2008 | CD | |
| Metal Church | XI | | 2016 | CD | ≡ |
| Metallica | Dressing Room | | – | 3CD | ≡ |
| Metallica | Live USA | | – | CD | ≡ |
| Metallica | Things That Should Not Be | | – | CD | ≡ |
| Metallica | Kill 'Em All | | 1983 | CD | |
| Metallica | Ride The Lightning | | 1984 | 2LP | |
| Metallica | Ride The Lightning | | 1984 | CD | |
| Metallica | Master Of Puppets | | 1986 | MC | |
| Metallica | Master Of Puppets | | 1986 | CD | |
| Metallica | Creeping Death/Jump In The Fire | | 1987 | CDEP | |
| Metallica | Garage Days And More | | 1987 | CD | |
| Metallica | Garage Days Re-Revisited | | 1987 | MC | ≡ |
| Metallica | The 5.98 E.P. Garage Days Re-Revisited | | 1987 | CD | |
| Metallica | The Unstoppable Force | | 1987 | 2LP | ≡ |
| Metallica | ...And Justice For All | | 1988 | CD | |
| Metallica | ...And Justice For All | | 1988 | 2LP | ≡ |
| Metallica | Harvester Of Sorrow | | 1988 | 12" | |
| Metallica | One single | | 1988 | – | |
| Metallica | Metallica | | 1991 | CD | |
| Metallica | Live At Wembley Stadium | | 1992 | CDS | |
| Metallica | Nothing Else Matters | | 1992 | CDS | |
| Metallica | Heavy Best | | 1993 | CD | |
| Metallica | Sad But True | | 1993 | CDS | |
| Metallica | Wherever I May Roam | | 1993 | CDS | ≡ |
| Metallica | At Woodstock | | 1994 | CD | ≡ |
| Metallica | Hero Of The Day | | 1996 | CDS | |
| Metallica | Hero Of The Day | | 1996 | CDS | ≡ |
| Metallica | King Nothing | | 1996 | CDS | |
| Metallica | Load | | 1996 | CD | |
| Metallica | Power Failure Part 1 | | 1996 | CD | ≡ |
| Metallica | Power Failure Part 2 | | 1996 | CD | ≡ |
| Metallica | Until It Sleeps | | 1996 | CDS | |
| Metallica | Reload | | 1997 | CD | |
| Metallica | Fuel | | 1998 | CDS | |
| Metallica | Garage Inc. | | 1998 | 2CD | |
| Metallica | The Unforgiven II | | 1998 | CDS | |
| Metallica | S&M | | 1999 | 2CD | |
| Metallica | Whiskey In The Jar | | 1999 | CDS | ≡ |
| Metallica | Whiskey In The Jar | | 1999 | CDS | ≡ |
| Metallica | Whiskey In The Jar | | 1999 | CDS | ≡ |
| Metallica | I Disappear | | 2000 | CDS | |
| Metallica | Millenium Nights | | 2000 | 2CD | ≡ |
| Metallica | Night Of The Rivvit-Heads | | 2000 | CD | |
| Metallica | S&M | | 2000 | 2DVD | |
| Metallica | The Garage Remains The Same | | 2000 | CDEP | ≡ |
| Metallica | Bay Area Thrashers | | 2001 | CD | |
| Metallica | Frantic | | 2003 | CD | ≡ |
| Metallica | Frantic | | 2003 | CDS | ≡ |
| Metallica | Live Sh*t Binge & Purge | | 2003 | Muu | |
| Metallica | Some Kind Of Monster | | 2003 | CDEP | |
| Metallica | St. Anger | | 2003 | CD | |
| Metallica | St. Anger | | 2003 | CDS | |
| Metallica | The Unnamed Feeling | | 2003 | CDS | |
| Metallica | The Unnamed Feeling | | 2003 | CDS | |
| Metallica | The Unnamed Feeling E.P. | | 2003 | CDEP | ≡ |
| Metallica | Some Kind Of Monster | | 2004 | 2DVD | |
| Metallica | Live In Helsinki 15.7.2007 | | 2007 | 2CD | |
| Metallica | All Nightmare Long | | 2008 | 2CD+DVD | ≡ |
| Metallica | Death Magnetic | | 2008 | CD | |
| Metallica | Beyond Magnetic | | 2012 | CDEP | |
| Metallica | Through The Never | | 2013 | 2CD | |
| Metallica | Through The Never | | 2013 | 2DVD | |
| Metallica | Hardwired...To Self-Destruct | | 2016 | 2CD | ≡ |
| Metallica | Liberte, Egalite, Fraternite, Metallica! | | 2016 | CD | ≡ |
| Metallica | 72 Seasons | | 2023 | CD | ≡ |
| Metalucifer | Heavy Metal Drill | | 1996 | CD | |
| Metalucifer | Heavy Metal Chainsaw | | 2001 | CD | |
| Metalucifer | Heavy Metal Genocide "Live In Japan 2002" | | 2003 | CD | |
| Metalucifer | Heavy Metal Bulldozer | | 2009 | CD | |
| Metalucifer | Heavy Metal Bulldozer (Teutonic Attack) | | 2009 | CD | |
| Metsatöll | Teras Mis Hangund Me Hinge | | 1999 | CD | |
| Metsatöll | Hiiekoda | | 2004 | CD | |
| Metsatöll | Iivakivi | | 2008 | CD | |
| Metsatöll | Äio | | 2010 | CD | |
| Metsatöll | Ulg | | 2011 | CD | |
| Metsatöll | Katk Kutsariks | | 2019 | CD | ≡ |
| Mew | Frengers | | 2003 | CD | |
| Mew | And The Glass Handed Kites | | 2005 | CD | |
| Miasma | Changes/Love Songs | | 2001 | CD | |
| Michael Monroe | Not Fakin' It | | 1989 | CD | |
| Michael Monroe | Piece Of Mind | | 1996 | CD | |
| Michael Monroe | Sensory Overdrive | | 2011 | CD | |
| Michael Monroe | Horns And Halos | | 2013 | CD | |
| Michael Monroe | Blackout States | | 2015 | CD | |
| Midas Touch | Presage Of Disaster | | 1989 | LP | |
| Midnight Club | Running Out Of Lies | | 2003 | CD | |
| Midnight Sun | Nemesis | | 1999 | CD | |
| Midnight Sun | Metal Machine | | 2001 | CD | |
| Mikko Alatalo | 20 Suosikkia | | 1996 | CD | |
| Mikko Herranen | Kylmä Maailma | | 2012 | CD | |
| Million | We, Ourselves & Us | | 1995 | CD | |
| Million Dollar Beggars | Million Dollar Beggars | | 2008 | CD | |
| Mind Odyssey | Time To Change It | | 2009 | CD | |
| Mind Riot | Peak | | 1995 | CD | |
| Mindfield | Truck-O-Rama | | 1999 | CDEP | |
| Ministry | Psalm 69 | | 1992 | CD | |
| Ministry | Filth Pig | | 1996 | CD | |
| Ministry | Dark Side Of The Spoon | | 1999 | CD | |
| Ministry | Rio Grande Blood | | 2000 | CD | ≡ |
| Ministry | Rantology | | 2005 | CD | |
| Minogue Kylie | Ultimate Kylie | | 2004 | 2CD | |
| Misanthropian | A Torture Of Your Own Design | | 2010 | CD | |
| Misery Inc. | Yesterday's Grave | | 2003 | CD | |
| Misery Inc. | Random End | | 2005 | CD | |
| Misery Inc. | Breedgreedbreed | | 2007 | CD | |
| Misery Index | Retaliate | | 2003 | CD | |
| Misery Index | Traitors | | 2008 | CD | |
| Misfits | American Psycho | | 1997 | CD | |
| Mistakes | Ihminen Hallitsee O.K. | | 1981 | 7" | |
| Mnemic | Sons Of The System | | 2010 | CD | |
| Mob Rules | Savage Land | | 1999 | CD | |
| Mob Rules | Hollowed Be Thy Name | | 2002 | CD | |
| Mob Rules | Ethnolution A.D. | | 2006 | CD | |
| Modern Talking | Ready For Romance | | 1986 | MC | ≡ |
| Mogwai | Happy Songs For Happy People | | 2003 | CD | |
| Mokoma | Valu | | 1998 | CD | |
| Mokoma | 120 Päivää | | 2001 | CD | |
| Mokoma | Kurimus | | 2003 | CD | |
| Mokoma | Punainen Kukko | | 2003 | CDEP | |
| Mokoma | Tämän Maailman Ruhtinaan Hovi | | 2004 | CD | |
| Mokoma | Kuoleman Laulukunnaat | | 2006 | CD | |
| Mokoma | Viides Vuodenaika | | 2006 | CDEP | ≡ |
| Mokoma | Luihin Ja Ytimiin | | 2007 | CD | |
| Mokoma | Juurta Jaksain | | 2010 | CDEP | ≡ |
| Mokoma | Sydänjuuret | | 2010 | CD | |
| Mokoma | 180 Astetta | | 2012 | CD | |
| Mokoma | 1 | | 2013 | CDEP | ≡ |
| Mokoma | Elävien Kirjoihin | | 2015 | CD | ≡ |
| Mokoma | Hengen Pitimet | | 2018 | CD | ≡ |
| Mokoma | Ihmissokkelo | | 2020 | CD | ≡ |
| Molly Hatchet | Molly Hatchet | | 1978 | CD | |
| Molly Hatchet | No Guts...No Glory | | 1983 | CD | |
| Molly Hatchet | Deed Is Done | | 1984 | CD | |
| Molly Hatchet | Lightning Strikes Twice | | 1989 | CD | |
| Molly Hatchet | Devil's Canyon | | 1996 | CD | |
| Molly Hatchet | Silent Reign Of Heroes | | 1998 | CD | |
| Molly Hatchet | Warriors Of The Rainbow Bridge | | 2005 | CD | |
| Molly Hatchet | Flirtin' With Disaster-Live | | 2007 | CD | |
| Molly Hatchet | Justice | | 2010 | CD | |
| Monster Magnet | Spine Of God | | 1991 | CD | |
| Monster Magnet | Dopes To Infinity | | 1995 | CD | |
| Monster Magnet | God Says No | | 2000 | CD | |
| Monster Magnet | Monolithic Baby | | 2004 | CD+DVD | |
| Monster Magnet | 4-Way Diablo | | 2007 | CD | |
| Monster Magnet | Mastermind | | 2010 | CD | |
| Monsteriser | The Long Snap To Zero | | 2006 | CD | |
| Monsteriser | Shortcuts To A Dead End | | 2008 | CD | ≡ |
| Monsteriser | Blessed To Breathe | | 2011 | CD | ≡ |
| Moonsorrow | Tämä Ikuinen Talvi | | 1999 | CD | |
| Moonsorrow | Suden Uni | | 2001 | CD | |
| Moonsorrow | Voimasta Ja Kunniasta | | 2001 | CD | |
| Moonsorrow | Kivenkantaja | | 2003 | CD | |
| Moonsorrow | Verisäkeet | | 2005 | CD | |
| Moonsorrow | Tulimyrsky | | 2006 | CD | |
| Moonsorrow | Viides Luku-Hävitetty | | 2007 | CD | |
| Moonsorrow | Varjoina Kuljemme Kuolleiden Maassa | | 2011 | CD | |
| Moonsorrow | Jumalten Aika | | 2016 | CD | |
| Moonspell | Wolfheart | | 1995 | CD | ≡ |
| Moonspell | The Butterfly Effect | | 1999 | CD | |
| Moonspell | Darkness And Hope | | 2001 | CD | |
| Moonspell | The Antidote | | 2003 | 2CD | |
| Moore Gary | Dirty Fingers | | 1984 | LP | |
| Moore Gary | Run For Cover | | 1985 | MC | ≡ |
| Moore Gary | Wild Frontier | | 1987 | CD | |
| Moore Gary | After The War | | 1989 | LP | |
| Moore Gary | Have Some Moore-The Best Of | | 2002 | 2CD | |
| Moore Gary | Back On The Streets, The Rock Collection | | 2003 | CD | |
| Moore Gary | Have Some Moore-The Best Of 2 | | 2008 | 2CD | |
| Morbid Angel | Altars Of Madness | | 1989 | CD | |
| Morbid Angel | Blessed Are The Sick | | 1991 | CD | |
| Morbid Angel | Covenant | | 1993 | CD | |
| Morbid Angel | Formulas Fatal To The Flesh | | 1998 | CD | |
| Morbid Angel | Gateways To Annihilation | | 2000 | CD | |
| Morbid Angel | Heretic | | 2003 | CD | |
| Mordred | Fool's Game | | 1989 | CD | |
| Mordred | In This Life | | 1991 | CD | |
| Mordred | Vision | | 1992 | CD | |
| Mordred | The Next Room | | 1994 | CD | |
| Morgana Lefay | The Secret Doctrine | | 1993 | CD | |
| Morgana Lefay | Sanctified | | 1995 | CD | |
| Morgana Lefay | Maleficium | | 1996 | CD | |
| Morgana Lefay | Morgana Lefay | | 1999 | CD | |
| Morgana Lefay | Grand Materia | | 2005 | CD | ≡ |
| Morgana Lefay | Aberrations Of The Mind | | 2007 | CD | |
| Morian | Sentinels Of The Sun | | 2007 | CD | |
| Mors Principium Est | Inhumanity | | 2003 | CD | |
| Mortal Sin | Mayhemic Destruction | | 1987 | LP | |
| Mortal Sin | Face Of Despair | | 1989 | CD | |
| Mortal Sin | Every Dog Has It's Day | | 1991 | CD | |
| Mortal Sin | An Absence Of Faith | | 2007 | CD | |
| Mortification | Blood World | | 1994 | CD | |
| Mortification | Triumph Of Mercy | | 1998 | CD | |
| Mortification | Hammer Of Gods | | 1999 | CD | |
| Mortification | The Silver Cord Is Served | | 2001 | CD | |
| Mortify | A Rhyme In Grief | | 1998 | CD | |
| Motörhead | On Parole | | 1979 | CD | |
| Motörhead | Ace Of Spades | | 1980 | CD | |
| Motörhead | 1916 | | 1991 | CD | |
| Motörhead | March Or Die | | 1992 | CD | |
| Motörhead | The Best Of | | 2000 | 2CD | |
| Motörhead | Kiss Of Death | | 2006 | CD | ≡ |
| Motörhead | Motörizer | | 2008 | CD | ≡ |
| Motörhead | The Wörld Is Yours | | 2010 | CD | ≡ |
| Mountain | Climbing! | | 1970 | CD | |
| Mountain | Flowers Of Evil | | 1971 | CD | |
| Mountain | Nantucket Sleighride | | 1971 | CD | |
| Mountain | Twin Peaks | | 1974 | CD | |
| Movetron | Romeo Ja Julia | | 1995 | CD | |
| Mr Bungle | Mr Bungle | | 1991 | CD | |
| Mr. Big | Mr.Big | | 1989 | LP | |
| Mr. Big | Lean Into It | | 1991 | CD | |
| Mr. Big | Hey Man | | 1996 | CD | |
| MR. President | We See The Same Sun | | 1996 | CD | |
| Mr.Big | Photographic Smile | | 1976 | LP | |
| Mrs. Hippie | Lotus | | 2000 | CD | |
| Mucky Pup | A Boy In A Mans World | | 1989 | LP | |
| Mucky Pup | Lemonade | | 1993 | CD | |
| Mudvayne | Lost And Found | | 2005 | CD | |
| Municipal Waste | The Art Of Partying | | 2007 | CD | |
| Municipal Waste | Massive Aggressive | | 2009 | CD | |
| Munisipal Waste | Hazardous Mutation | | 2005 | CD | |
| Murena | Metonin Jakso | | 2007 | CD | |
| Murena | Katoamispiste | | 2009 | CD | |
| Muse | Absolution | | 2003 | CD | |
| Muse | Black Holes & Revelations | | 2006 | CD | |
| Muse | The Resistance | | 2009 | CD | |
| Must Missa | Martyr Of Wrath | | 2007 | CD | |
| Mustan Kuun Lapset | Suruntuoja & Kauniinhauta | | 2005 | 2CD | |
| Mustan Kuun Lapset | Saatto | | 2017 | CD | |
| Mustasch | Above All | | 2002 | CD | |
| Mustasch | Ratsafari | | 2003 | CD | |
| Mustasch | Powerhouse | | 2005 | CD | |
| Mustasch | Latest Version Of Truth | | 2007 | CD | |
| Mustasch | Mustasch | | 2009 | CD | |
| Mustasch | Singles A's & B's | | 2009 | CD | |
| Mustasch | Sounds Like Hell, Looks Like Heaven | | 2012 | CD | |
| Mustasch | Thank You For The Demon | | 2014 | CD | |
| Mustasch | Testosterone | | 2015 | CD | |
| Mustasch | Silent Killer | | 2018 | CD | |
| Mustasch | Killing It For Life | | 2019 | CD | ≡ |
| My Chemical Romance | The Black Parade | | 2006 | CD | |
| My Dying Bride | As The Flowers Withers | | 1992 | CD | |
| My Dying Bride | Turn Loose The Swans | | 1993 | 2CD | ≡ |
| My Dying Bride | Like Gods Of The Sun | | 1996 | CD | |
| My Dying Bride | 34.788%...Complete | | 1998 | CD | |
| My Dying Bride | The Light At The End Of The World | | 1999 | CD | |
| My Dying Bride | The Dreadful Hours | | 2001 | CD | |
| My Dying Bride | Songs Of Darkness, Words Of Lights | | 2004 | CD | |
| My Dying Bride | A Line Of Deathless Kings | | 2005 | CD | |
| My Dying Bride | An Ode To Woe | | 2008 | CD+DVD | |
| My Dying Bride | The Ghost Of Orion | | 2020 | CD | |
| My Ruin | Speak & Destroy | | 1999 | CD | |
| My Ruin | A Prayer Under Pressure Of Violent Angwish | | 2000 | CD | |
| My Shameful | ...Of Dust | | 2004 | CD | |
| Myforever | Mixtape | | 2009 | CDEP | |
| MyGrain | Orbit Dance | | 2006 | CD | |
| MyGrain | MyGrain | | 2010 | CD | |
| Myon | Heaven's Garden | | 1998 | CD | |
| Myrath | Tales Of The Sands | | 2011 | CD | |
| Mystic Charm | Shadows Of The Unknown | | 1994 | CD | |
| Mythem | Mythem | | 1997 | CDEP | |
| Mythos | Mythos | | 1972 | CD | |
| Mötley Crue | Too Fast For Love | | 1981 | CD | |
| Mötley Crue | Shout At The Devil | | 1983 | CD | |
| Mötley Crue | Theatre Of Pain | | 1985 | CD | |
| Mötley Crue | Girls Girls Girls | | 1987 | MC | |
| Mötley Crue | Dr Feelgood | | 1989 | CD | |
| Mötley Crue | Decade Of Decadence | | 1991 | CD | |
| Mötley Crue | Mötley Crue | | 1994 | CD | |
| Mötley Crue | Generation Swine | | 1997 | CD | |
| Mötley Crue | Supersonic And Demonic Relics | | 1999 | CD | |
| Mötley Crue | New Tattoo | | 2000 | CD | |
| Mötley Crue | Carnival Of Sins | | 2005 | 2DVD | |
| Mötley Crue | Red, White And Crue | | 2005 | 2CD | |
| Mötley Crue | Saints Of Los Angeles | | 2008 | CD | |
