I love Netflix, except out of every three discs I get, at least one that doesn't play all the way through. I probably just have very poor luck with getting bad discs, but it's still irritating - we watch a movie to about 2/3 way through, then it stops and we wait another couple of days for a replacement to get to us, PLUS that takes time away from how frequently we get a new movie. It's bad enough that we're considering cancelling our service. :(
I'm glad to see that not everybody has this experience!