1)   DiskInternals CD and DVD Recovery 3.5
Got corrupted/inaccessible files on a CD or DVD? Power went out, during a recording session? This solution will recover files from CDs and DVDs, including multi-session ones. CD-R, CD-RW, DVD-R, DVR+R, DVD-RW, DVR+RW and DVD-RAM. 100% Success Rate

 2)   IsoBuster 2.4
IsoBuster is an expert and low cost utility to do data recovery from CD, DVD, BD and HD DVD. All File-Systems are supported. Supports an enormous range of image files. Comprehensive help file, Scanning for lost files and folders, Surface scan, UDF.

 3)   Recover Disc 1.0
Recover Disc helps you extract data from damaged or incorrectly burned CD and DVD discs when regular software can't read them fully or partially. This tool extracts the intact portion of your data and tries to restore problem areas.