| cop | Sam Coupe Audio Data |
| cseq | Nintendo 3DS Audio Sequence Data |
| csw | Compressed Square Wave |
| cvh | DR-97 Digital Recorder HQ Voice |
| cvs | Continuously Variable Slope Delta Modulation Audio |
| cvs | DR-97 Digital Recorder SP Audio |
| cvsd | Continuously Variable Slope Delta Modulation Audio |
| cvu | CVSD Unfiltered Audio |
| d | SPPack Audio Data |
| d00 | OPL2 FM Audio |
| d01 | OPL2 FM Audio |
| d50 | Roland D-50 Patch |
| dab | Digital Audio Broadcasting File |
| dabp | Opendigitalradio DABPlus Encoded Audio |
| dashsnd | Wusikstation Instrument Data |
| daw | Cubase Recording |
| dcm | DCM Music Module |
| dewf | SoundEdit Recorded Instrument |
| df2 | Defractor 2 Instrument |
| dfc | Defractor Instrument |
| dff | Direct Stream Digital Interchange File Format Data |
| dh | David Hanney Music |
| dig | Digilink Format Audio Data |
| dig | Sound Designer Audio |
| digi | DIGIBooster Music Module |
| djmusic | Digital Juice Juicer Music |
| dlp | Microsoft DirectMusic Producer Audio |
| dls | Downloadable Sounds File |
| dmc | FamiTracker DPCM Sample |
| dmf | X-Tracker Music Module |
| dmkit | Drumaxx Kit Data |
| dmo | Twin TrackPlayer Music |
| dmpatch | Fruity Loops Studio Drumpad Data |
| dmptrn | Fruity Loops Studio Pattern Data |
| dmu | Digital Mugician Music Module |
