Hi there,

Well first of all you can try a lens cleaning disk, just insert a lens cleaner cd to the right side try and try to play them, you can purchase the lens cleaner disk from the below link -

http://www.amazon.com/Allsop-56500-CD-Laser-Lens-Cleaner/dp/B00000J1QK

Please post comment if further you have the same problem............

Good Luck!!

Thanks