The receipt isn't in the box, maybe somewhere else...but I won't hold my breathe. If it'* messed up and unfixable and I DO need a receipt...I'll sell this like my last one and buy a new one later...again. They have a 540W one now anyway...that would be sweeeeeet.
my guess it'* a combination problem.
1) They are probably making CD'* cheaper or getting bad burns on them, possibly the copyright protection is causing problems.
2) The cd player may be on the edge of toasting or just enough out of alignment with those cds that it will not play.