Letter: D
- desmume - A Nintendo DS emulator
- devede - A program to create video DVDs and CDs (VCD, sVCD or CVD)
- dosemu - DOS Emulator for Linux
- dvbcut - Clip and convert DVB transport streams to MPEG2 program streams
- dvdrip - Graphical DVD ripping and encoding tool
- dvdstyler - Cross-platform DVD authoring application