I've had a 411s since January and at first had a few teething problems and made a big pile of coasters when backing up movies. I then thought I had solved the problem when I starting using Nero Recode to compress and copy the movies to my HD, then use Nero Burning ROM to copy the files across to Imation DVD-R 4x discs. I did this about 8 times in a row with no coasters.
However, the last 3 discs I have made have had the same problem. After I burn the disc, I take it out and put it in my normal DVD-ROM drive and just skip through the chapters to the end credits to make sure everything looks normal and it does. However, then I try to play the DVD on my DVD player and after approximately 11 minutes I start to get break-up before the player crashes and I have to remove and start again. If I turn the player off for about an hour, put back in and play from where I left off, it plays the bit it got stuck on and then crashes again after about another 11 minutes!!
Now the weird thing is that both my drives in my PC can read no problems, yet both my standalone players (different brands) have the same problems. Could it possibly be that this media is effected by the heat of the player or something?