Never a problem
I have used several hundred of these in the past and I've necr had a problem with any of the discs, I'm either very lucky or just don't use a bad CD writer.
I appreciate the other buyerscomments, but have they tried other manufacturers? If they give problems then maybe it's time to check your writer rather than the discs, like I said I have no problems. TDK are well respected and they wouldn't have this reputation without delivering.