This is a bit odd. But I have noticed this a number of times now. After I have burned a DVD with a movie, it plays fine in PowerDVD, but if I go to "my computer" and click on the drive, the CD shows up as blank. Also, if I try to open the DVD in Windows Media Player, again it shows up as blank. It still plays in standalone players - so I know it isn't! So why does the PC not see the files? Any clues would be helpful!!