Normally, if you want to record them to DVDs, I'd suggest you to play your tapes, and record them to your PC, then burn them to a DVD. Make sure you have a decent quality recording though.
Originally Posted by foothead
There is only a switch on the blank VHS tapes. Anything with a movie won't have one.
Actually, for blank VHS tapes, you need to break the plastic tip in the front, and to write over movies (which I don't see why you would do that), you will need to put a piece of scotch tape in front of the hole at the front of the tape.