As of this date, I have used approximately 6 of these DVDs, without any problems at all. Although it takes a while to process, I don't just sit and stare at the monitor, I'm busy doing something, so the time still flies. Sometimes I think it is so accurate because of the slow speed. All I an say is the results have been flawless, no problems at all. I have tried them on several standalone DVD players, with no issues at all. I used a sony DVD RW drive.