Letter: D
- desmume - A Nintendo DS emulator
- desmume-cli - A Nintendo DS emulator (CLI version)
- desmume-glade - A Nintendo DS emulator (Glade GUI version)
- devede - A program to create video DVDs and CDs (VCD, sVCD or CVD)
- dosemu - DOS Emulator for Linux
- dvdstyler - Cross-platform DVD authoring application