Here's the deal, sorry if I'm a little wordy. I ripped a DVD using Handbrake. Nothing copyrighted, just my daughter's spring middle school show. I exported it using Handbrake using h.264 codec with a .m4v file extension. I can't import it into iMovie. BUT, if I change the extension to .mp4, it imports with no problem. Now to confuse things a bit. I captured some analog video using eyetv 250 plus. I then exported it using h.264 codec with a .mp4 extension and the dang thing WON'T import into iMovie. Same codec and same extension and it doesn't import. What the heck am I missing?