Here you can find some info about the catagories. 7" - vinyl single 12" - vinyl maxi single CA - cassette CD - cd in standard jacket CD3 - 3" cd in cardboard sleeve CDMS - cd in thin jacket CDMS3 - 3" cd in thin jacket CDR - burned cd (officially) in standard jacket CDRS - burned cd (officially) in cardboard sleeve CDS - cd in cardboard sleeve CS - cassette single DD - digital download DP - digi pack DP3 - digi pack for 3" cd (Japanese) DVD - DVD DVD+ - DVD on one side, cd on other side DVDA - DVD Audio DVDS - DVD Single LB - long box LD - laserdisc LP - vinyl album MD - mini disc SACD - super audio cd SCD - shape cd SD - shape disc (vinyl) VID - video tape