| groove | ACID Pro Groove Data |
| gsf | Game Boy Advance GSF Song |
| gsflib | GSF Instrument Samples Data |
| gsm | GSM Audio File |
| gsrt | Grandstream Ring-tone |
| gt2 | Graoumf Tracker 2 Module |
| gtk | Graoumf Tracker Module |
| gtk1 | Graoumf Tracker Module |
| gtk2 | Graoumf Tracker 2 Module |
| guit | Rust Guitar Tool Song |
| gxg | BOSS GT-10 Patch |
| gym | Sega MegaDrive Music |
| h0 | Magix Movie Edit Pro Audio Data |
| ha2 | Herbulot AdLib System v2 Audio |
| hcom | Macintosh HCOM Audio |
| hd | Sony Playstation 2 SCEI Instrument Set Data |
| hdp | Samplitude Music Studio HD Audio |
| hipc | Hippel-COSO Music |
| hm0 | MAGIX Audio Cleaning Lab Waveform Data |
| hma | Sony HI-MD Audio |
| hmi | HMI Audio |
| hps | Gamecube HPS Audio Data |
| hrt | Hornet Packer Music Module |
| hsb | HALion Sound Bank |
| hsc | HSC-Tracker Song |
| hsq | Herbulot AdLib System Audio |
| hvl | Commodore Amiga HivelyTracker Audio Module |
| iaa | INTUS Terminal Audio Archive |
| ibk | Creative Labs FM Banks |
| idd | MIDI Instrument Definition File |
| idf | MIDI Instrument Definition File |
| idsp | Nintendo Gamecube Streamed Audio |
| ikx | iKlax Creator Audio |
| ilb | Scream Tracker 2 Instrument Library |
| ilbc | Internet Low Bit Rate Codec Audio |
