Image Sequences-why not suitable?

[James W. <jfc...@ya...>]

Hi all,
 
I wonder, why are still image sequences, such as JPEGs, not suitable for real world use? I want video support as much as anyone, but for now, aren't JPEG sequences fine? Is the problem with the fact that audio can't be streamed directly with it? It's standard practice to stream the audio from a seperate file in games, anyway...Or is it becouse JPEG sequences are somewhat larger then Ogg Theora? That's not much of an issue when you've got DVD-ROMs to work with....