See if ISOBUSTER will look at the disk.
In closing, where's the other copy of this disk? CDRW media doesn't last long when used as a disk drive. This lesson is often learned but rarely taught.
Those CDRW as a drive letter corrupt too often if we move between machines. So never do that and have it as the only copy. (another learned but rarely taught item.)
CD R with data files burned with CD/DVD r/w drive on a Dell laptop running Windows Home XP was put into HP/Compaq desktop with CD R/W drive to print files.
The drive recognition changed from CDRW (when clicking on ''explore'' on the start menu) to ''UDF Drive Letter Access'' when attempting to access files on the desktop computer.
At first the computer recognized the files and printed a couple of pages. Then things went haywire.
The Samsung 252 RW drive in the desktop would not let the CD-R disc go. Now neither the desktop nor the Dell laptop will see ANY files on the CD-R. The message is that it is a blank disk.
Now what? Those files are ... very important.