player wont play svcds anymore but plays dvds

[Norco]

hello, my apex ad-1500 dvd player stopped playing svcds and even some retail audio cds, but still plays dvds burned and retail, any idea why lol, could laser be dirty or player just going heh

[Norco]

well i just banged it around a bit and plays everything fine again lol, so something was loose i guess, weird how just wouldnt play cds before tho and dvd were fine, something must handle each thing separate or somethin