It's a codex for film
files. As a newer version of ripping which are currently used, and most likely
will fully take over
the place of the old DivX. This is a lot better quality, and are very recomended for HD-tv rippings.
1: Hey, I downloaded some DivX
movies last night.
2: What? Haven't you heard of x264?
1: No? What's that
2: It's a lot better quality, but doesn't take the same size as a dvd.
1: Sounds good, perhaps
I'll try that
next time then.