| M.A.R.S. | Project : Driver | 1986 | LP | |
| Maakuntaradio | Ex-Tytöille | 2009 | LP | |
| Maarit | Maarit | 1973 | LP | |
| Maarit | Viis’ Pientä | 1975 | CD | |
| Maarit | Siivet Saan | 1978 | LP | |
| Maarit | Nykyajan Lapsi | 1980 | CD | |
| Maarit | Elämän Maku | 1981 | LP | |
| Maarit | Tuskan Tanssi | 1988 | LP | |
| Maarit | 20 Suosikkia – Laakson Lilja | 1995 | CD | |
| Maarit | Sydäntäsi Lainaisin | 1995 | CD | |
| Maarit | Good Days, Bad Days | 2004 | CD | |
| Maarit | Sumuinen Puutarha | 2019 | CD | |
| MacAlpine, Tony | Edge Of Insanity | 1986 | CD | |
| MacAlpine, Tony | Maximum Security | 1987 | LP | |
| MacAlpine, Tony | Eyes Of The World | 1990 | LP | |
| MacAlpine, Tony | Madness | 1993 | CD | |
| MacAlpine, Tony | Evolution | 1995 | CD | |
| MacAlpine, Tony | Violent Machine | 1996 | CD | |
| MacAlpine, Tony | Master Of Paradise | 1999 | CD | |
| Machine Men | Machine Men | 2002 | CDEP | |
| Machine Men | Scars & Wounds | 2003 | CD | |
| Machine Men | Elegies | 2005 | CD | |
| Machine Men | Circus Of Fools | 2007 | CD | |
| Mad Max | Night Of Passion | 1987 | LP | |
| Madonna | True Blue | 1986 | LP | |
| Madonna | True Blue | 1986 | LP | |
| Mael Mórdha | Cluain Tarbh | 2005 | CD | |
| Mael Mórdha | Gealtacht Mael Mórdha | 2007 | CD | |
| Maestah | Maestah | 2014 | CD | |
| Magister Templi | Lucifer Leviathan Logos | 2013 | CD | |
| Magister Templi | Into Duat | 2015 | CD | |
| Magnesium | Buried 'n' Live | 2012 | CD | |
| Magnum | Kingdom Of Madness | 1978 | 2CD | |
| Magnum | Magnum II | 1979 | CD | |
| Magnum | Marauder | 1980 | CD | |
| Magnum | Chase The Dragon | 1982 | CD | |
| Magnum | The Eleventh Hour | 1983 | CD | |
| Magnum | Vigilante | 1986 | LP | |
| Magnum | Wings Of Heaven | 1988 | LP | |
| MainEEaxe | Shout It Out | 1984 | LP | |
| Majesty | Doomsday Machine | 2001 | CD | |
| Malediction | Condamnés | 2001 | CD | |
| Malediction | Esclave Du Vice | 2004 | CD | |
| Malice | In The Beginning | 1985 | LP | |
| Malice | License To Kill | 1987 | LP | |
| Malice | Crazy In The Night | 1989 | 12" | |
| Malicious Death | Devilization | 2003 | LP | |
| Malmsteen's Rising Force, Yngwie J. | Rising Force | 1984 | CD | |
| Malmsteen's Rising Force, Yngwie J. | Odyssey | 1988 | LP | |
| Malmsteen, Yngwie | Eclipse | 1990 | CD | |
| Malmsteen, Yngwie | Fire And Ice | 1992 | CD | |
| Malmsteen, Yngwie | Facing The Animal | 1997 | CD | |
| Malmsteen, Yngwie J. | Trilogy | 1986 | CD | |
| Malmsteen's Rising Force, Yngwie J. | Marching Out | 1985 | LP | |
| Mama's Boys | Power And Passion | 1985 | LP | |
| Mama's Boys | Mama's Boys | 1984 | LP | |
| Mama's Boys | Growing Up The Hard Way | 1987 | LP | |
| Man-Eating Tree, The | Vine | 2010 | 2LP | |
| Mana Mana | Complete... Kaikki | 1996 | CD | |
| Mania | Wizard Of The Lost Kingdom | 1988 | 12" | |
| Manilla Road | Crystal Logic | 1983 | LP | |
| Manilla Road | Open The Gates | 1985 | CD | |
| Manilla Road | The Deluge | 1986 | CD | |
| Manilla Road | Mystification | 1987 | CD | |
| Manilla Road | Out Of The Abyss - Before Leviathan | 1988 | LP | |
| Manilla Road | The Courts Of Chaos | 1990 | CD | |
| Manilla Road | The Circus Maximus | 1992 | CD | |
| Manilla Road | Atlantis Rising | 2001 | CD | |
| Manilla Road | Mark Of The Beast | 2002 | 2LP | |
| Manilla Road | Spiral Castle | 2002 | CD | |
| Manilla Road | Invasion & Metal | 2004 | 2CD | |
| Manilla Road | Gates Of Fire | 2005 | CD | |
| Manilla Road | Voyager | 2008 | CD | |
| Manilla Road | Playground Of The Damned | 2011 | LP | |
| Manilla Road | Mysterium | 2013 | LP | |
| Manilla Road | The Blessed Curse | 2015 | 2LP | |
| Manilla Road | To Kill A King | 2017 | Muu | ≡ |
| Manipulated Slaves | The Legendary Black Jade | 2001 | CD | |
| Manitoba's Wild Kingdom | ...And You? | 1990 | CD | |
| Mann-Dude, Guy | Sleight Of Hand | 1989 | LP | |
| Mann-Dude, Guy | Mannic Distortion | 1991 | CD | |
| Mannerheim | Feel The Dawn | 1994 | 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 Triumph Of Steel | 1992 | CD | |
| Manowar | Louder Than Hell | 1996 | CD | |
| Manowar | Return Of The Warlord | 1996 | CDS | ≡ |
| Manowar | Hell On Wheels | 1997 | 2CD | |
| Manowar | Hell On Stage | 1999 | 2CD | |
| Manowar | Warriors Of The World | 2002 | CD | |
| Manowar | Warriors Of The World United | 2002 | CDS | ≡ |
| Manowar | The Absolute Power | 2006 | 2DVD | |
| Manowar | Gods Of War | 2007 | CD+DVD | |
| Manowar | The Lord Of Steel | 2012 | CD | |
| Marauder | Sense Of Metal | 1997 | CD | |
| Marauder | 1821 | 2000 | CD | |
| Marauder | Life? | 2004 | CD | |
| Marauder | Elegy Of Blood | 2012 | CD | |
| Maraya | No Hope For Humanity | 1996 | CD | |
| Marcello, Kee | Scaling Up | 2016 | CD | |
| Marduk | Fuck Me Jesus | 1994 | CDS | ≡ |
| Marillion | Script For A Jester's Tear | 1983 | CD | |
| Marillion | Fugazi | 1984 | CD | |
| Marillion | Misplaced Childhood | 1985 | CD | |
| Marillion | Clutching At Straws | 1987 | 2CD | |
| Marillion | Seasons End | 1989 | CD | |
| Marillion | Holidays In Eden | 1991 | CD | |
| Marillion | Brave | 1994 | 2CD | |
| Marillion | This Strange Engine | 1997 | CD | |
| Marillion | Radiation | 1998 | CD | |
| Marillion | Anoraknophobia | 2001 | CD | |
| Marillion | Marbles | 2004 | CD | |
| Marillion | Sounds That Can't Be Made | 2012 | CD | |
| Marino, Frank | Full Circle | 1986 | LP | |
| Marino, Frank | From The Hip | 1990 | CD | |
| Marquis (Маркиза) | Marquis (Маркиза) | 1990 | LP | |
| Marshall Law | Metal Detector | 1997 | CD | |
| Marshall Law | Warning From History | 1999 | CD | |
| Martin, Tony | Angel In The Bed | 1992 | CDS | ≡ |
| Martin, Tony | Back Where I Belong | 1992 | CD | |
| Martin, Tony | If There Is A Heaven | 1992 | CDS | ≡ |
| Martin, Tony | Scream | 2005 | CD | |
| Martin, Tony | Thorns | 2022 | CD | |
| Martiria | The Eternal Soul + Live At Play It Loud III | 2004 | 2CD | |
| Martiria | Time Of Truth | 2008 | CD | |
| Martiria | On The Way Back | 2011 | CD | |
| Martiria | S.P.Q.R. | 2012 | CD | |
| Marvin Featuring Brian May, Hank | We Are The Champions | 1992 | CDS | ≡ |
| Masquerade | Surface Of Pain | 1994 | CD | |
| Masquerage | Work-Holic-Fool | 2007 | CD | |
| Masquerage | Moonlight Time | 2008 | CD | |
| Masquerage | Backstabber | 2012 | CD | |
| Masquerage | Breaking The Masks | 2016 | CD | |
| Masquerage | Hangman's Revelations | 2018 | CD | |
| Master Spy | The Train | 2021 | CD | |
| Masterstroke | Sleep | 2007 | CD | |
| Matthias Steele | Haunting Tales Of A Warrior's Past | 1991 | 2LP | |
| Matthias Steele | Resurrection | 2007 | CD | |
| Matthias Steele | Question Of Divinity | 2016 | CD | |
| Mattlar, Marja | Pariisi-Vuorenkylä | 1993 | CD | |
| Mattlar, Marja | Pariisi-Vuorenkylä | 1993 | CD | |
| Mattlar, Marja | Kuu | 2012 | CD | |
| Mattsson | Another Dimension | 2000 | CD | |
| Mattsson, Lars Eric | Eternity | 1988 | LP | |
| Mattsson, Lars Eric | Electric Voodoo | 1991 | CD | |
| Mattsson, Lars Eric | Electric Voodoo | 1991 | CD | |
| Mattsson, Lars Eric | Obsession | 1998 | CD | |
| Mattsson, Lars Eric | War | 2005 | CD | |
| Maule | Maule | 2022 | LP | |
| Mausoleum Gate | Obsessed By Metal | 2013 | 7" | |
| Mausoleum Gate | Gateways For The Wicked - & Obsessed By Metal Sessions | 2014 | CD | |
| Mausoleum Gate | Mausoleum Gate | 2014 | CD | |
| Mausoleum Gate | Metal And The Might | 2016 | 7" | |
| Mausoleum Gate | Into A Dark Divinity | 2017 | CD | |
| Mausoleum Gate | The Demon Age Of Aquarius | 2019 | 7" | |
| Maverick | Quid Pro Quo | 2014 | CD | |
| Maverick | Big Red | 2016 | CD | |
| Maverick | Cold Star Dancer | 2018 | CD | |
| Maverick | Ethereality | 2021 | CD | |
| Max Plänck | Kill The Pain | 1985 | LP | |
| May & Friends, Brian | Star Fleet Project | 1983 | 12" | |
| May & Friends, Brian | Star Fleet Project | 1983 | CD | |
| May & Friends, Brian | Star Fleet Project | 1983 | 12" | |
| May Band, Brian | Live At The Brixton Academy | 1994 | CD | |
| May, Brian | Driven By You | 1991 | 12" | |
| May, Brian | Back To The Light | 1992 | CD | |
| May, Brian | Back To The Light | 1992 | CDS | ≡ |
| May, Brian | Last Horizon | 1993 | CDS | ≡ |
| May, Brian | Another World | 1998 | CD | |
| May, Brian | Red Special | 1998 | CD | ≡ |
| May, Brian & Kerry Ellis | Golden Days | 2017 | CD | |
| May, Imelda | Love Tattoo | 2008 | CD | |
| McAuley Schenker Group | Perfect Timing | 1987 | LP | |
| McAuley Schenker Group | Save Yourself | 1989 | LP | |
| McCourt & Wild Dogs, Matthew T. | Down And Dirty | 2004 | CD | |
| McCoy | Brainstorm | 1998 | CD | |
| McCoy, Andy | Building On Tradition | 1995 | CD | |
| McLaughlin, John | Thieves And Poets | 2003 | CD | |
| Medeski Scofield Martin & Wood | Out Louder | 2006 | CD | |
| Medieval Steel | The Dungeon Tapes | 2005 | CD | |
| Medieval Steel | The Dungeon Tapes | 2005 | LP | |
| Medieval Steel | Dark Castle | 2013 | LP | |
| Mega | Täältä Tullaan | 1987 | LP | |
| Megadeth | Peace Sells...But Who's Buying | 1986 | CD | |
| Megadeth | So Far, So Good...So What? | 1988 | CD | |
| Megadeth | Rust In Peace | 1990 | CD | |
| Megadeth | Countdown To Extinction | 1992 | CD | |
| Megadeth | Cryptic Writings | 1997 | CD | |
| Megadeth | The World Needs A Hero | 2001 | CD | |
| Megadeth | United Abominations | 2007 | CD | |
| Megadeth | Endgame | 2009 | CD | |
| Megaton Sword | Niralet | 2019 | 12" | |
| Megaton Sword | Blood Hails Steel - Steel Hails Fire | 2020 | LP | |
| Meliah Rage | Kill To Survive | 1988 | LP | |
| Meliah Rage | Barely Human | 2004 | 2CD | |
| Mengele | Senseless Extermination | 1989 | 7" | |
| Meniketti, Dave | On The Blue Side | 1998 | CD | |
| Meniketti, Dave | Meniketti | 2002 | CD | |
| Mercedes Hell | Kingdom Together | 2009 | 7" | |
| Mercenary | The Hours That Remain | 2006 | CD | |
| Mercury Rising | Upon Deaf Ears | 1997 | CD | |
| Mercury, Freddie | Mr Bad Guy | 1985 | LP | |
| Mercury, Freddie | Mr. Bad Guy | 1985 | LP | |
| Mercury, Freddie | Mr. Sad Guy | 1987 | CD | |
| Mercury, Freddie | The Freddie Mercury Album | 1992 | CD | |
| Mercury, Freddie | Remixes | 1993 | CD | |
| Mercury, Freddie & Caballé, Montserrat | Barcelona | 1988 | CD | |
| Mercy | Victory March | 2003 | CD | |
| Mercyful Fate | Melissa | 1983 | CD | |
| Mercyful Fate | Don't Break The Oath | 1984 | CD | |
| Mercyful Fate | The Bell Witch | 1994 | CDEP | |
| Mercyful Fate | Time | 1994 | CD | |
| Merryweather Stark | Carved In Rock | 2018 | CD | |
| Mersinary | Tear Down The Walls | 2022 | 2CD | |
| Messiah Force | The Last Day | 1987 | CD | |
| Metal Church | Metal Church | 1985 | CD | |
| Metal Church | The Dark | 1986 | CD | |
| Metal Church | Blessing In Disguise | 1989 | CD | |
| Metal Church | The Human Factor | 1991 | CD | |
| Metal Church | Hanging In The Balance | 1994 | CD | |
| Metal Church | Masterpeace | 1999 | CD | |
| Metal Church | A Light In The Dark | 2006 | CD | |
| Metal Church | This Present Wasteland | 2008 | CD | |
| Metal King | Worship To The Real Metal | 2001 | 7" | |
| Metal King | Arrival Of The Iron Army | 2004 | CD | |
| Metal King | Any Warrior Dies Without Honour | 2007 | CD | |
| Metal King | The Blood Of A Living Past | 2010 | CD | |
| Metal Mercy | The Unborn Child | 2014 | CD | |
| Metalhead | Demon | 2006 | 7" | |
| Metalian | Midnight Rider | 2017 | LP | |
| Metalian | Beyond The Wall | 2022 | LP | |
| Metallica | Kill 'Em All | 1983 | CD | |
| Metallica | Ride The Lightning | 1984 | CD | |
| Metallica | Master Of Puppets | 1986 | CD | |
| Metallica | ...And Justice For All | 1988 | CD | |
| Metalucifer | Heavy Metal Bulldozer | 2009 | CD | |
| Metheny & Anna Maria Jopek, Pat | Upojenie | 2002 | CD | |
| Metheny Unity Group, Pat | KIN (←→) | 2014 | CD | |
| Metheny, Pat | Bright Size Life | 1976 | LP | |
| Metheny, Pat | Bright Size Life | 1976 | CD | |
| Metheny, Pat | A Map Of The World (Music From And Inspired By The Motion Pictur | 1999 | CD | |
| Metsatöll | Terast Mis Hangund Me Hinge 10218 | 2005 | CD | |
| Metsatöll | Ulg | 2011 | LP | |
| Michael Landau, Robben Ford, Jimmy Haslip & Gary Nowak | Renegade Creation | 2010 | CD | |
| Michael Schenker Group, The | M.S.G. | 1981 | LP | |
| Michael Schenker Group, The | Assault Attack | 1982 | LP | |
| Michael Schenker Group, The | Built To Destroy | 1983 | LP | |
| Michael Schenker Group, The | The Unforgiven | 1999 | CD | |
| Michael Schenker Group, The | Arachnophobiac | 2003 | CD | |
| Michael Schenker Group, The | Tales Of Rock'N'Roll - Twenty-Five Years Celebration | 2006 | CD | |
| Michael Schenker Group, The | In The Midst Of Beauty | 2008 | CD | |
| Midas | Demo Tapes | 2020 | 12" | |
| Midas | Midas | 2022 | LP | |
| Midnight Idöls | We Rule The Night | 2006 | CD | |
| Midnight Idöls | Nightrulers | 2008 | CD | |
| Midnight Priest | Rainha Da Magia Negra | 2009 | CDEP | |
| Midnight Priest | Midnight Priest | 2011 | CD | |
| Midnight Spell | Sky Destroyer | 2021 | LP | |
| Millenium | Jericho | 2004 | CD | |
| Mind's Eye | Into The Unknown | 1998 | CD | |
| Minotauri | Devil Woman | 2000 | CD | |
| Minotauri | Funeralive | 2002 | CD | |
| Minotauri | Minotauri | 2004 | CD | |
| Minotauri | Satan In Man / Sex Messiah | 2004 | 7" | |
| Minotauri | II | 2007 | CD | |
| Mirror | The Day Bastard Leaders Die | 2022 | LP | |
| Mollo, Dario; Martin, Tony | The Cage | 1999 | CD | |
| Mollo, Dario; Martin, Tony | The Cage 2 | 2002 | CD | |
| Mollo, Dario; Martin, Tony | The Third Cage | 2012 | CD | |
| Monroe, Michael | Horns And Halos | 2013 | CD | |
| Monster Magnet | Spine Of God | 1992 | CD | |
| Monster Magnet | 4-Way Diablo | 2007 | CD | |
| Montany | New Born Day | 2002 | CD | |
| Montany | Biogenetic | 2013 | CD | |
| Montany | Perception Of Time | 2022 | CDEP | |
| Moon Doc | Realm Of Legends | 2000 | CD | |
| Moonsorrow | V: Hävitetty | 2007 | CD | |
| Moore, Gary | Back On The Streets | 1978 | LP | |
| Moore, Gary | G-Force | 1980 | LP | |
| Moore, Gary | Corridors Of Power | 1982 | LP | |
| Moore, Gary | Dirty Fingers | 1983 | LP | |
| Moore, Gary | Victims Of The Future | 1983 | LP | |
| Moore, Gary | Run For Cover | 1985 | CD | |
| Moore, Gary | Run For Cover | 1985 | LP | |
| Moore, Gary | Wild Frontier | 1987 | CD | |
| Moore, Gary | Wild Frontier | 1987 | LP | |
| Moore, Gary | After The War | 1989 | CD | |
| Moore, Gary | After The War | 1989 | LP | |
| Moore, Gary | Still Got The Blues | 1990 | LP | |
| Moore, Gary | After Hours | 1992 | LP | |
| Moore, Gary | Power Of The Blues | 2004 | CD | |
| Moore, Gary | Old New Ballads Blues | 2006 | CD | |
| Moore, Vinnie | Mind's Eye | 1986 | LP | |
| Moore, Vinnie | Time Odyssey | 1988 | LP | |
| Moore, Vinnie | Meltdown | 1991 | CD | |
| Moore, Vinnie | Out Of Nowhere | 1996 | CD | |
| Morbus Chron | Sleepers In The Rift | 2011 | MC | |
| Mordancy | The Anthology 1989 - 1993 | 2018 | CD | |
| More | Warhead | 1981 | LP | |
| Morgul Blade | Fell Sorcery Abounds | 2021 | LP | |
| Morningstar | As The Wolves Howl | 1995 | CDEP | |
| Morningstar | Heretic Metal | 1996 | CD | |
| Morningstar | Hell | 1999 | CD | |
| Morningstar | Weight Of The Hammer | 2000 | CD | |
| Morningstar | Kalevala Mysticism | 2002 | CD | |
| Morningstar | Finnish Metal | 2004 | CD | |
| Morningstar | Finnish Metal | 2004 | LP | |
| Morningstar | Inside The Circle Of Pentagram (The Young Pagan Hearts) | 2005 | LP | |
| Mors Principium Est | Inhumanity | 2003 | CD | |
| Morse, Neal | Live Momentum | 2013 | Muu | ≡ |
| Morse, Steve Band | Southern Steel | 1991 | CD | |
| Mortal Sin | Mayhemic Destruction | 1986 | CD | |
| Mortal Sin | Mayhemic Destruction | 1987 | LP | |
| Mortal Sin | Face Of Despair | 1989 | LP | |
| Mortal Sin | An Absence Of Faith | 2007 | CD | |
| Mortuary Drape | Into The Drape / All The Witches Dance | 2009 | CD | |
| Mortyr | Rise Of The Tyrant | 2013 | CD | |
| Mosh | Private Place | 1995 | LP | |
| Mothers Of Invention, The | Weasels Ripped My Flesh | 1970 | CD | |
| Motörhead | Bomber | 1979 | CD | |
| Motörhead | On Parole | 1979 | CD | |
| Motörhead | Overkill | 1979 | CD | |
| Motörhead | Ace Of Spades | 1980 | CD | |
| Motörhead | Iron Fist | 1982 | CD | |
| Motörhead | Another Perfect Day | 1983 | LP | |
| Motörhead | Orgasmatron | 1986 | LP | |
| Motörhead | Rock 'n' Roll | 1987 | CD | |
| Motörhead | 1916 | 1991 | CD | |
| Motörhead | Spotlight | 1992 | CD | |
| Motörhead | Bastards | 1993 | CD | |
| Motörhead | The Wörld Is Yours | 2010 | CD | |
| Mountain Throne | Serpent's Heathland | 2010 | 12" | |
| Mountain Throne | Stormcoven | 2013 | LP | |
| Mountain Throne | The Silver Light | 2024 | LP | |
| Mountain Throne / Lords Of Triumph | Sword Dance / Reaching The End | 2015 | 12" | |
| Mountain Throne / Procession | Trumpets Of Autumn / Crazy Train | 2011 | 7" | |
| Mourning Beloveth | A Murderous Circus | 2005 | CD | |
| Mourning Beloveth | A Disease For The Ages | 2008 | CD | |
| Mr. Big | Lean Into It | 1991 | CD | |
| mTORR | Nordic Iron Age | 2018 | 7" | |
| mTORR | North | 2018 | LP | |
| mTORR | Viking Metal Rock | 2018 | CDEP | |
| Murphy, James | Convergence | 1996 | CD | |
| Murphy, James | Feeding The Machine | 1998 | CD | |
| MXD | Frustration Is Fuel | 2005 | CD | |
| My Dying Bride | Turn Loose The Swans | 1993 | CD | |
| My Dying Bride | The Light At The End Of The World | 1999 | CD | |
| My Dying Bride | A Line Of Deathless Kings | 2006 | 2LP | |
| My Dying Bride | For Lies I Sire | 2009 | CD | |
| My Dying Bride | The Manuscript | 2013 | CDEP | |
| Myramainz | No World For Angels - The Demos | 2021 | CD | |
| Mystic Prophecy | Vengeance | 2001 | CD | |
| Mythra | Warriors Of Time: The Anthology | 2015 | 2LP | |
| Mötley Crüe | Mötley Crüe | 1994 | CD | |
| Mötley Crüe | Saints Of Los Angeles | 2008 | CD | |
