Itunes videos skip and are not synced with sound. Using windows 7.

Question

Videos are not synced with sound and skip in itunes only, using windows 7. No other video issues, only in itunes.

Answer 1

It's alright, I don't have a Mac so I get confused too. The option key should be somewhere to the left of the space bar and look like it is trying to represent railway points.
I don't know how migration assistant works, but presumably it has dumped an iTunes folder somewhere on the Mac. Inside that should be a file called iTunes Library.itl that is the core of the library. Unfortunately iTunes "thinks different" so we can't just double click the file to open it, that opens whatever the "current" library is instead, so you'll need to hold down option (shift for Windows) to get a dialog to choose or create a library. Click choose and browse to the relevant file.
If iTunes can't play your music at this point and gives the exclamation mark of doom then we need to go back to the Windows 7 library, tweak it up for easy export then bring it over again. Overview here. Customized instructions on request.
tt2