The real annoying part of CDs was the failure rate. It could be the medium, the burner, or the software, but it always seemed you'd spend time waiting for the data to be saved to a more "permanent" source, and it would finally pop up with an error and the whole disk is now trash. Kind of glad that tech is now obsolete. I think you could redo a read/write a few times, but they had similar issues and it was a pain.