I'm not an expert mate, but recent threads have suggested that there are some settings, including Track-at-once TAO, and Disk-at-once DAO. I think you need to burn audio at DAO to make your discs universally acceptable. Like I say I'm no expert and learnt this from these boards in the last week. Try doing a search using some of the above terms . Alternatively the real experts will have finished their papers and coffee and will be logging on soon i'm sure.