I don't understand. Why wouldn't you use mpeg-4 for anything more than Standard Def? My experiences with mpeg-4 have been really positive. Mpeg-2 (aka DVD and H.263) is fine, but not nearly as clean and efficient as the Mpeg-4 I've used. I mean, h.264 is mpeg-4. Have you had bad experiences using it?
Good point about the h.264 decoding using up battery power!
H.264 > DivX > MPEG-4
H.264 != MPEG-4
Yeah, a 16 GB video player would be laughably small for me (not to mention screen size issues). I wouldn't mind the space to load up most of my library though.
Even though using flash memory over a hard drive could increase battery life. I don´t think 16GB is enough. Yeah, you won´t be watching more than 8-16 movies per trip. But the whole point of the iPod is availability of what you want.
Exactly!
I don´t really know. Maybe a hard-drive and flash flash memory iPod? Load things from HD to flash memory, then watch. Would that consume more battery life than watching directly from the HD? I don´t know enough about the technology and power consumption, any experts want to comment?
I don't think there would be a significant enough performance improvement to justify that. If I'm not mistaken, the iPods already have a Flash-based cache to save battery power, so the hard drive doesn't have to be spinning all the time.