"Lesley Robertson" <l.a.robertson@tnw.tudelft.nl> wrote in message news:9f73e$473d71bc$83b4502b$21671@news1.tudelft.nl... > Just a quick reminder since there seems to be a few beginners reading this > thread. Don't rely on long term storage on CD-Rs. I found a batch of 4 > yesterday, all of which are unreadable. Fortunately I have all my CDs > backed up to an external harddrive, so it's easy to burn more. DVDs are > more stable. If you have to use CDs, make duplicates from different > manufacturers. The reason all 4 of mine failed at the same time is because > they all came out of the same box, and thus presumably the same batch. At > least different batches should fail at different times! > Lesley Robertson > That's helpful advice, thanks Lesley