Picking and choosing from images

[mybook4]

Here is my problem.
I have Final Fantasy VII for Playstation. I made a backup of my game a while ago, and I recently tested it to make sure I could still make another backup. I got read errors from sectors around 64%, 80%, and 96% of the way through the disc. I put in my original and got read errors at 77% of the way through the disc.
Is there any way that i can get the missing information from the image that has it and add it to the other one to make a complete image? I really don't want to have to buy the game again (not that I could even find a copy in good condition).

[johns0]

Make image files (cue/bin)of both cd`s and then you can use cdmage to import the good sectors from one image to the image you want to fix,also its best to slow down the ripping process to 4x or even slower to get less errors when making the image files.Also try another cd/dvd device to rip the files with as some readers are not so good with psx games.