Get ffx

Get a dvd drive

Get ffx2mov

Run ffx2mov

Pick your dvd drive

Check the fmvs you want to rip (they're pretty big)

Then hit a button that the readme will probably tell you, but most people ignore it and hit the wrong one and it doesn't rip

Use dvd2avi to turn into a playable movie

Have fun.

Else, go to animemusicvideos.org and search around in there.