Quicktime, get the serial to activate Quicktime Pro, den watever
files it can open you can export them to Quicktime Movie, its
default setting is using H.264 codec (its the best codec, but you
need to have Quicktime 7). Super small file size and you can always
enlarge the video by twice its size when playing it without having
any obvious blurness. But it doesn't work on mpg, vob, wmv and rm
files. Wat a pity... You can watch a 7mb 2min video comfortably
without any enlargement. No probs when viewing in full screen mode
too. Apple is the best at all these video stuff... 
