Cd player question

When I originally hard modded my ps3 the disk reader wasn't working so i used the version for digital only consoles. I just fixed it though, and its partially reading my cds but then says the data is corrupt. Is there a fix for this or should I reinstall the mod? also possibly unrelated, my ps3 will not emulate the license for the games I've put on there, I've used the two most recommended methods from other posts.