What is the difference between DVDs copied en masse and DVDs burned on a single burner? Is the tracking different? Is the redundancy different? Is the dye different? I am beginning to wonder about how well preserved one's videos and digital photographs are if one uses DVD media. Last summer purchased an I/O Magic 8x DVD burner (DVDRW IDE 1008) which recently received the 0159 firmware update (054was there when I bought the player). No difference in problem resolution. Last summer burned TEON DVD+R discs and thought that they worked well since I put them in the Philips 704 player and they played. Unfortunately I did not play anything to the end. Over Christmas I bought some Philips 1-8x +DVDR and burned the same iso file to one of them. Decrypter started out burning around 4x and finished the burn at 8x. Same problem with this disc. (also same problem if I use Nero 188.8.131.52 or Roxio). What is the problem? The movie plays fine in the burner with PowerDVD or Windows Media Player, but starts to drop audio and video and sometimes even freezes the Philips player in the later chapters of a movie. A different player in the house experiences the same problem. What is it that the pros do to get their media aligned so that it works in tons of home players that the burners can't do to get media to perform as well? I hesitate to attempt to transfer VHS tapes, video and digital media if one has to not only keep the DVDs, but the burner too in order to play these keepsakes in the future. Just wonder how many people have done the same thing, thinking that they had playable DVD's only to learn later that their media won't play on the variety of players that the commercial DVD's do. Is a different kind of redundancy possible for the later chapters? I have tried to shrink to 3/4 from 4.38 GB and the burner will burn til about the outer 1/2 to 3/8 inch of the media. I would still have to shrink further in order to get a playable disc which is not what I want to do. Prior to this, had no trouble using the CD burner that came with the computer to burn VCDs (Photostory 2) that were read by a lot of players that relatives had.