| Logo | Name | Abbrev. | Items | Last Update | Rating | Country | Description |
| | M & N WORLDWIDE | MNWORLDWIDE | 0 | 4Jan2002 | | USA | Classic LP's to the Finest People in the World - Our Customers! |
| | M AND K BOOKS | MANDKBOOKS | 14388 | 6Jan2009 | | USA | |
| | M APPLETON | MAGGZ | 0 | (unknown) | | UNITED KINGDOM | |
| | M B FORSTON | MBFORSTON | 6 | 24Oct2001 | Poor | USA | |
| | M JUNGE | MJUN | 0 | (unknown) | | USA | |
| | M K SOUNDS | MKS | 450 | 1Jan2009 | Excellent | UNITED KINGDOM | RECORD COLLECTORS FOR MORE THAN 35 YEARS! |
| | M KERSTEN | MKERSTEN | 0 | (unknown) | | NETHERLANDS | |
| | M LOUIS | MIZZ | 0 | (unknown) | | USA | |
| | M MORGAN | MMORGAN | 0 | (unknown) | | USA | |
| | M O N O - R E C O R D S | MONOREC | 6 | 23Feb2005 | | IRELAND | Dublins best collection of Trance,Techno,House & Classics |
| | M VOGT | MVOGT | 0 | (unknown) | | USA | |
| | M&B'S GARAGE | MBGARAGE | 26 | 10Jun2006 | | USA | Some of the best Rock'n'Roll, Doo Wop, R&B, and Garage Band Music |
| | M&G RECORDS | EUNEECE | 4977 | 6Jan2009 | Excellent | USA | |
| | M&K RECORDS | MKRECORDS | 2 | 6Feb2006 | | UNITED KINGDOM | CATSFIELD'S LARGEST VINYL STORE. |
| | M&K SOUND ENTERTAINMENT | MKSOUND | 31 | 29Jun2001 | | USA | We are the world's premiere audiophile label ith top quality CD, DVD, and direct |
| | M&M BASKETBALL | MMBB | 0 | (unknown) | | USA | Personal Collection of 80s, 90s, Jazz, and Vinyl Remixes |
| | M&M MUSIC | MMMUSIC | 0 | 31Mar2003 | | USA | M&M Music specializes in rare, hard to find and OOP latin pop. |
| | M&M RECORDS | DANCING | 63 | 16Feb2003 | Good | USA | We Are Totally Committed to Keeping Your Business. |
 | M+W MUSIKVERLAG | MWMUSIKVERLAG | 0 | (unknown) | | GERMANY | Music Collections for Collecting Tanks |
| | M,B,FORSTON | MEL | 6 | 25Oct2001 | | USA | |
| | M-DISC | MDISCS | 181195 | 11Dec2008 | Good | NETHERLANDS | Brand New Media and Books |
| | M-INSPIRED | MSPIRE | 0 | (unknown) | | USA | |
| | M-SWING RECORDS | MSWING | 4 | 2Aug2003 | | CANADA | |
| | M-TRIBE | MTRIBE | 0 | (unknown) | | USA | Moroccan Tribal Music |
| Logo | Name | Abbrev. | Items | Last Update | Rating | Country | Description |
| | MAGICAL SOUNDS | MAGICALSOUNDS | 0 | (unknown) | | FRANCE | World, Alternative & Trad music specialist |
| | MAGICBUS COLLECTABLES | MAGICBUS | 0 | (unknown) | | USA | Cd`s, Vinyl, Rarities, Imports, New & Used, 60`s, 70`s |
| | MAGICBUSRECORDS | MBUSREC | 0 | (unknown) | | ITALY | |
| | MAGICK BY DESIGN - MUSIC DIVISION | MBDMUSDIV | 0 | 22Jun2003 | | USA | |
| | MAGICMATT1 | MAGICMATT1 | 0 | (unknown) | | USA | |
 | MAGIK FEET | MAGIKFEET | 1885 | 28Nov2008 | Excellent | UNITED KINGDOM | EAST OF ENGLANDS PREMIER DANCE MUSIC INTERNET SHOP |
| | MAGIK FEET.COM | MFEET | 0 | (unknown) | | USA | |
| | MAGIKAL JOURNEYS A DIV. OF ATST | MAGIKAL1 | 71120 | 6Jan2009 | | USA | |
| | MAGISZ | MAGISZ | 0 | 6Dec2007 | | USA | Quality of product seems to always beat the grading |
| | MAGIUNO CD'S | MAGIUNOCDS | 0 | (unknown) | | ITALY | |
| | MAGMAMANIA | MAGMA75 | 1109 | 14Oct2008 | Excellent | CANADA | Specializing in Progressive Rock and Jazz Rock Fusion LP,CD,7" |
| | MAGNA CARTA | MAGNACARTA | 2 | 11Oct2004 | | USA | |
| | MAGNE WOLLHEIM JR | MAGWOL | 10 | 20Feb2008 | | NORWAY | |
| | MAGNETIC RESONANCE | MRESONANCE | 0 | 30Jan1999 | | USA | magnetic resonance presents atmospheric electronic music from the biting edge of |
| | MAGNETIK RECORDS | MAGNETIK | 0 | (unknown) | | SOUTH AFRICA | |
| | MAGNIFIQUE RECORDS CHICAGO | CESARIOMOZA | 0 | (unknown) | | USA | rare groove dance vinyl |
| | MAGNIN JEAN CHRISTOPHE | DJDANNYWILD | 0 | (unknown) | | *PIERRE BENITE | french dj selling his collection |
| | MAGNOLIA ENTERTAINMENT LLC | MAGNOLIA | 0 | (unknown) | | USA | Online record dealer |
| | MAGNOLIA MUSIC | MAGMUSIC | 3 | 3Nov2006 | | USA | "Your source for hard-to-find titles on CD" |
| | MAGNOLIA THUNDERPUSSY RECORDS | THUNDERPUSSY | 7 | 20Jul2006 | | USA | A pretty good record store in Columbus, Ohio. |
| | MAGNUMVINYL | RAYMAGNUM | 0 | (unknown) | | UNITED KINGDOM | |
| | MAGNUS ANDERSSON | MAGNUSSWEDEN | 0 | (unknown) | | SWEDEN | |
| | MAGNUS ANDR~E | BALDER | 0 | (unknown) | | SWEDEN | |
| | MAGNUS TOMBRE | MAGNUSTOMBRE | 5 | 1Feb2007 | | NORWAY | Litlle vinyl collector. |
| | MAGRUDERGRIND | MAGRUDERGR | 0 | (unknown) | | USA | |