I have burned over 400 dvd's with no problems using DVD decryptor, DVD 2one, nero and a Pioneer 104. Now all my disks freeze about 1:15 mn into the movie. I thought it might be time for a new burner so I bought sony's DRU-710A. Guess what? Same problem! I tried different media, same problem. I switched all burning activity over to a 2nd boot up hard drive that is pretty clean of all junk programs, same problem. Tried it on different players, same problem. At this point I'm thinking it's a motherboard problem. Can anyone out there help? Any suggestions?