Disk Copy 6.3: -50 Error When Making Image

When creating a disk image of a compact disc (CD) or hard drive, Disk Copy 6.3 reports it could not complete the operation due to a -50 error.
This is a known issue with Disk Copy 6.3 only. When making an image from a volume that has data stored at the end of the volume, Disk Copy 6.3 will not complete the image operation and report a -50 error.

Workarounds:
1) Media that is not read-only can be optimized so that all free space is at the end blocks of the volume.
2) When saving a volume as a disk image, change the size of the image so that it is slightly larger.

This issue has been addressed in the latest version of Disk Copy 6.x, which can be downloaded from the Apple Software Updates Web site at http://www.apple.com/swupdates.
Published Date: Feb 20, 2012