P3 video straight from the sd card isn't recognized by youtube, why? Says it's in an invaliade video formate. They are .mov files. Why can't I upload? Gopro Studio doesn't recognize them either.

Thanks,

Something is amiss somewhere. Regardless of using .mov or .mp4 format, my version of GoPro Studio recognizes the files just fine.

.mp4 may be a little more digestible since it's already designed for streaming - but either should work.
You can change the P3 settings to output mp4