[Maciek1988]

I want to sell some CDs I no longer want in my collection. However, I used them a lot and they got scratched over time. How do I check if they play without skipping or any losses without actually listening to them one by one?
 
Do you know of any software that could check the CDs for me?

 

[esldude]

You can rip them with an Accuraterip compatible software and they will compare checksums.
 
I haven't done this myself, but here is a link to figure it out. Mainly one of those softwares will compare your checksum of a rip to the database and retrieve info about it. As ripping can be done at high speed you wouldn't have to listen to them.
 
http://www.accuraterip.com/software.htm