I'd like to do some drawing demonstrations, but in real time it would take too long for most people's attention spans. Is there any way to spped the video up after I've recorded it? For instance, I'd like to have a 10 minute demo compressed down to about 3-4 minutes. Also, I'd like to add an audio track after the fact. Can I do this with Snapz Pro?
Thanks

Snapz Pro can't do that stuff, but QuickTime Pro ($30, Apple) can.

Thanks for that.