Problem with drive not being able to read

I have a problem with my drive not being able to read burned dvd discs. I can burn them, just not read them…any burned dvd - data discs, movies etc. The drive does not have a problem reading and playing normal store bought dvd movies though. The drive did not have this problem at all before. Anyone have any ideas? Is this a hardware or software issue? I also have the latest drivers… My drive is sold as a Digital Max drive but is manufactured by Lite-On Model - DRW-3S163