[spooky]

Try using CDRWin to make your backup.

leave all the settings as default for the read session but make sure that the RAW option is enabled, and use a read speed of 4x.

Create an image to your hard drive first.

To write, again leave all the settings as default this time including the RAW option and reduce the write speed to 2x.

Make sure you are using a good quality branded media such as verbatum, sony or tdk....

If you still have trouble during the read session then you may try to clean the CD with warm soapy water or even a special cd polish to try and polish out any scratches.