Hello All: The company accepts input from hundreds of schools on CD. Many of those CDs are originally unreadable once we get them in house and we have to spend much time making them readable. The fact that we can make them readable in the end (usually it involves one of my programmers walking around the plant and inserting the CD into a Mac box until he finds one that reads the disk) leads me to conclude that we'd have an easier time of it if we only had the right software to help diagnose the problem. Do any of you know an equivalent of "Norton Disk Doctor" or something similar that would work on CDs? Any other suggestions you might have would be gratefully received. R, John A.M. Darnell Project Leader Internal Software Development Walsworth Publishing Company