Lately I have been very much into Quicktime.. I like to say its one of my favorite softwares. Its has so many glitchy compressions. One of the glitches that I really enjoy is a very easy one I used for a remake of the old Washmountain (music by Extraboy) and also for the accidents in celluloid and pixel.
Use Quicktime 7 pro (don't know about the new one!) and export any video to .avi (Cinepak 256 grays, least quality). The result is a mad acid techno 090909 color surprise! yeahaa!
Even better: fastforward in the HD gets you a green youtube remix!