VRO on DVD-RAM

I have a Panasonic DVR85H and I edited programs and copied them to DVD-RAM using the “quick” method. I want to move these to a hard disk on my computer. The files have the extensions BUP, IFO and VRO. I have an external drive that will read the prohrams, but when I try to either copy or move the VRO I am told “Access is denied”. The file is marked archive and when I try to remove that ID, it won’t take. It won’t allow me to rename it, either. Any suggestions would be appreciated.