The CD/DVD drive is 2 or more years old. Since this one is a Toushsmart I would try one of those USB DVDRW drives since they cheap compared to a shop fee.
Bob
PS. You don't have to answer but why not put the model number and age in your posts?
For some reason my Hp Touchsmart All In One recovery system won't recognize the disks or internal recovery file. I have purchased new disk for I thought there my be a problem with the disk I made from the computer when I purchased it. I have followed the directions for both ways to use the recovery setup and neither work.
Do you have any possible solutions?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic