This is driving me mad. I have a DVD R+RW drive and fist of all should it write to R- discs because they play fine in the pc and my home dvd player but friends dvd players it just says disc error etc? Why? And I've never had a problem before useing the R+ discs but just recently a disc I burnt plays on my home DVD player but at about 3 points in the movies becomes blocky and pixelated (plays fine on the pc) but it still gets through it but on friends Dvd players it actually just freezes at that point. If I skip the to chapter after and rewind it to just before it freezes it is possible to watch it. There is also an other issue with a DVD i burnt. Plays fine on my pc and dvd player but on another it plays about 10% of the time, gets to the firstplay and freezes 10% of the time and the rest it just says error. If it obviously can play it why would it just play some of the time?!?!