After saving a folder full of pics to a CD-R, my drive couldn't read the disc.  I put in a DVD to test it and it started skipping right away.  I went to the local office supply store and bought a cheap lens cleaner.  The DVD played a little better but still skipped.  Three minutes with the Allsop Ultra Pro and my DVD played perfectly.  I put my CD in and viewed all my pics.  Must be that carbon fiber technology.