will my backup work fine?
 

i used Alcohol 120 to create a backup for Call of Duty. Instead of clicking Copy Wizard, i used Image Making Wizard in Alcohol. i selected safedisc 2/3 on the protection mode, and when it started making image, tons of reading errors occured. will this method work fine? i'm just concernen about those tons of reading errors...

The errors are normal, its part of the protection. You will notice the first 2-3% of reading seems to take a long time, this also is normal.
Once the read has finished with the errors the process will speed up.
The disc will be fine for installing the game but you will still need a NoCD exe to play.

Visit GameCopyWorld to find a NoCD crack.