
| M | 99 | |
| Macabre: Behind The Walls Of Sleep (1994) | ||
| Macabre: Morbid Campfire Songs (2004 Reissue) (2002) | ||
| Macabre: Murder Metal (2003) | ||
| Machine Head (US): The Blackening (2007) | ||
| Machine Head (US): The Burning Red (1999) | ||
| Machine Head (US): The More Things Change... (1997) | ||
| Machine Head (US): Supercharger (2001) | ||
| Machinemade God: The Infinity Complex (2006) | N/A | |
| Mactätus: The Complex Bewitchment (2000) | ||
| Madball: Infiltrate The System () | ||
| Malefice (UK): Dawn Of Reprisal (2009) | ||
| Malevolent Creation: Envenomed (2000) | N/A | |
| Malevolent Creation: Joe Black (1996) | ||
| Malignancy (US): Intrauterine Cannibalism (1999) | ||
| Mangled (Hol): Ancient Times (1998) | N/A | |
| Mangled Torsos: Drawings Of The Dead (1994) (Rear artwork needs to be replaced) | N/A | |
| Manntis: Sleep In Your Grave (2005) | N/A | |
| Manowar: Battle Hymns (2001 Remastered Version) (1982) | N/A | |
| Manowar: Fighting The World (1987) | N/A | |
| Manowar: King Of Kings (2005) | ||
| Manowar: Kings Of Metal (1988) | ||
| Manowar: Louder Than Hell (1996) | ||
| Manowar: The Sons Of Odin (2006) | ||
| Manowar: The Triumph Of Steel (1992) | N/A | |
| Marduk (Swe): Plague Angel (2004) | ||
| Marduk (Swe): Wormwood (2009) | ||
| Masterplan: Masterplan (Limited Edition) (2003) | ||
| Mastodon: Blood & Thunder (2004) | ||
| Mastodon: Lifesblood (2001) | N/A | |
| Mastodon: Leviathan (Bonus DVD edition) (2004) | ||
| Mastodon: March Of The Fire Ants (2002) | ||
| N/A | Mastodon: Radio Sampler (2006) | |
| Mayhem (Nor): Chimera (Limited Edition Digipack) (2004) | N/A | |
| Megadeth: Endgame (2009) | ||
| Megadeth: Risk (1999) | ||
| Megadeth: The System Has Failed (2004) | ||
| Megadeth: United Abominations (2007) | ||
| Melechesh: Djinn (2001) | N/A | |
| Meliah Rage: Barely Human (2004) | N/A | |
| Meliah Rage: The Deep And Dreamless Sleep (2006) | ||
| Memorized Dreams: Theater Of Life (2004) (Needs to be replaced) | ||
| Mental Horror: Proclaiming Vengeance (2000) | ||
| Mercenary (Dnk): 11 Dreams (2004) | ||
| Mercenary (Dnk): Everblack (2002) (Needs to be replaced) | ||
| Merciless Death (US): Realm Of Terror (2008) | ||
| Mercyful Fate: 9 (1999) | N/A | |
| Mercyful Fate: The Beginning (1997 Remastered Version) (1987) | ||
| Mercyful Fate: The Bell Witch (1994) | ||
| Mercyful Fate: Dead Again (1998) (Artwork needs to be replaced) | ||
| Mercyful Fate: Don't Break The Oath (1997 Remastered Version) (1984) | ||
| Mercyful Fate: In The Shadows (1993) | N/A | |
| Mercyful Fate: Melissa (1997 Remastered Version) (1983) | ||
| Mercyful Fate: Time (1994) | ||
| Merendine Atomiche: Raw (2006) | N/A | |
| Merendine Atomiche: Walk Across Fire (2003) | N/A | |
| Meshuggah: Catch Thirtythree (2005) | ||
| Meshuggah: Chaosphere (1998) | ||
| Meshuggah: Contradictions Collapse & None (Split CD) (1998) | N/A | |
| Meshuggah: Destroy Erase Improve (1995) | N/A | |
| Meshuggah: I (2004) | ||
| Meshuggah: Nothing (Reissue) (2002) | ||
| Meshuggah: ObZen (2008) | ||
| Meshuggah: Rare Trax (2001) (Promotional version) | N/A | |
| Messiah's Kiss: Metal (2004) | ||
| Metal Church: The Weight Of The World (2004) | N/A | |
| Metallium (Ger): As One - Chapter Four/Hero Nation - Chapter Three (Split CD) (2004) | N/A | |
| Metallica: Death Magnetic (Digipack) (2008) | ||
| Middian: Age Eternal (2007) | N/A | |
| The Mighty Nimbus: The Mighty Nimbus (2004) | ||
| Ministry: Animositisomina (2003) | ||
| Ministry: Dark Side Of The Spoon (1999) | N/A | |
| Ministry: Houses Of The Molé (Original "No W" track pressing) (2004) | ||
| Ministry: Rio Grande Blood (Digipack) (2006) | ||
| N/A | Misanthrope (Fra)/Torturer (Chl): Hater Of Mankind/Kingdom Of The Dark (Split CD) (1991) (Rear artwork needs to be replaced) | N/A |
| Misery Index: Discordia (2006) | N/A | |
| Molotov Solution: The Harbinger (2009) | ||
| Monstrosity (US): Rise To Power (2003) | N/A | |
| Moonsorrow: V - Hävitetty (2007) | ||
| Moonspell: The Butterfly Effect (1999) | N/A | |
| Moonspell: Darkness And Hope (2001) | ||
| Moonspell: Memorial (2006) | ||
| Moonspell: Night Eternal (Limited Edition Digipack) (2008) | ||
| Moonspell: Sin/Pecado (1998) | N/A | |
| Morbid Angel: Altars Of Madness (1989) | N/A | |
| Morbid Angel: Covenant (1993) | ||
| Morbid Angel: Domination (Alternate artwork version) (1995) | ||
| Morbid Angel: Heretic (Bonus disc edition) (2003) | ||
| Morgion: The Relapse Collection (2008) | N/A | |
| Morifade: Domination (2004) | ||
| Motörhead: R.A.M.O.N.E.S./Devil I Know (2006) | ||
| Motörhead: Kiss Of Death (2006) | ||
| Motörhead: Motörizer (2008) | ||
| Mr. Death: Detached From Life (2009) | ||
| Mudvayne: The Beginning Of All Things To End (2001) | ||
| Mudvayne: L.D. 50 (2000) | ||
| Mudvayne: Lost And Found (Dual Disc Edition) (2005) | ||
| Mudvayne: The End Of Things To Come (Digipack) (2002) | ||
| Murder Squad: Ravenous, Murderous (2003) | ||
| Murderdolls: Beyond The Valley Of The Murderdolls (2003 Reissue) (2002) | ||
| Murderdolls: The Right To Remain Violent (2002) | ||
| Mystic Prophecy: Satanic Curses (Bonus Track Edition) (2007) | ||