Copying RTAV files to hardrive for editing?

Hi everyone. I have a good ol’ sony handycam, and don’t have the cable or drivers (even though im sure i could find them) to simply plug and play. I’ve got some of the dvds that i recorded but all the disk contains (well… among some other small file) is a DVD_RTAV file folder which i can’t seem to get to work with any programs i currently have. Anyone know of some kind of software which will read this. I use to use Cyberlink Powerdirector but the trial expired. Thanks guys.