CD/DVD

ImgBurn - Build ISO, Burn ISO

Infrarecorder - All in one CD/DVD Tool

LCISOCreator - Simple ISO Creation from reading physical disk.

Virtual CloneDrive - CD/DVD Emulator

DVDFab - DVD Ripper - Shareware, can rip to DVD9 for free

DVDShrink - Compress dual layer DVD (DVD9) to single layer DVD (DVD5)

DVDStyler - Make your own DVD menus

DVDFlick - Make a DVD from any video source, like youtube .flv files

DVD Slideshow GUI - Make DVD Slideshow with lots of effects from video/stills