CD's
- Mental Hippie Blood - Pounds (1994)
- Mercyful Fate - 9 (1999)
- Mercyful Fate - Melissa (1983)
- Merging Flare - Reverence (2011)
- Metal Church - Classic Live (2017)
- Metal Church - The Dark (1986)
- Metal Church - XI (2016)
- Metallica - 72 Seasons (2023)
- Metallica - Death Magnetic (2008)
- Metallica - Garage Inc. (1998)
- Metallica - Kill 'em All (1983)
- Metallica - Load (1996)
- Metallica - Reload (1997)
- Metallica - St. Anger (2003)
- Michael Bolton - The Hunger (1987)
- Michael Penn - March (1989)
- Mike Tramp - Capricorn (1997)
- Miles Davis - Porgy and Bess (1959)
- Mind Bomb - Mind Bomb (1993)
- Mindfunk - Dropped (1993)
- Ministry - The Last Sucker (2007)
- Moby - Play (1999)
- Monster Magnet - Powertrip (1998)
- Montrose - Jump on It (1976)
- Montrose - Montrose (1973)
- Montrose - Paper Money (1974)
- Moonspell - 1755 (2017)
- Moonspell - Extinct (2015)
- Moonspell - Hermitage (2021)
- Moonspell - Irreligious (1996)
- Moonspell - Night Eternal (2008)
- Moonspell - Sin / Pecado (1998)
- Moonspell - The Antidote (2003)
- Moonspell - Under Satanae (2007)
- Moonspell - Wolfheart (1995)
- Morbid Angel - Domination (1995)
- Mortician - Domain of Death (2001)
- Mortiis - The Grudge (2004)
- Mother's Finest - Live (1979)
- Mötley Crüe - New Tattoo (2000)
- Motörhead - 1916 (1991)
- Motörhead - Ace of Spades (1980)
- Motörhead - Inferno (2004)
- Motörhead - Orgasmatron (1986)
- Motörhead - The Best Of (2000)
- Motorpsycho - Barracuda (2001)
- Mr. Big - Bump Ahead (1993)
- Mr. Big - Get Over It (2000)
- Mr. Big - Lean into It (1991)
- Mr. Big - Live (1992)
- Mr. Big - Mr. Big (1989)
- MSG - One Night at Budokan (1982)
- MTM Music Vol. 1 (1997)