| 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 | 11428 | 4Jul2008 | | 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 | 364 | 30Jun2008 | Excellent | UNITED KINGDOM | RECORD COLLECTORS FOR MORE THAN 35 YEARS! |
| | M KERSTEN | MKERSTEN | 0 | (unknown) | | NETHERLANDS | |
| | M LOUIS | MIZZ | 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 | 5358 | 4Jul2008 | 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 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,B,FORSTON | MEL | 6 | 25Oct2001 | | USA | |
| | M-DISC | MDISCS | 181195 | 2Jun2008 | OK | 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 |
| | M. BOON | BONESINC | 0 | (unknown) | | NETHERLANDS | |
| | M. BRADEN | BRADENRECORDS | 5 | 23Jun2003 | | USA | |
| | M. BURNEY | MBURNEY | 0 | (unknown) | | USA | |