I am trying to find a program that will check BLANK dvdr for errors. I have an almost unlimited supply of cheap dvdrs + and -. Some burn and play with no problems some freeze near the end of the movie or skip and so forth. I am in need of a program I can run that will check to see if a disc is full of bad sectors or if it has lots of errors near the end of the disc. I am aware of ways to check after the disc has been burned but I need to check before its burned or I will was half my life burning and then checking to see if its ok. Anyone have a solution for me?