I'm using DELL 1300 Laptop and trying to put copy protected movie disk into drive. When I put disk into drive the drive automatically begins to read disk and then seems to lock drive with light remaining on. The DVD drive is then not viewable when I either try to play movie or view files on drive. I then have to eject disk to get light to go off. DVD reads other disks no problem. What can I do to view files on disk?