I opened up my ps3 to clean my lens. After I was in there I forgot that I still had a disc in there. I thought "No biggie I'll just take it out" after I finished putting together my ps3 to my dismay I found out I can no longer put discs in the drive. Help!?

ok im no expert but, as the disc was in when the ps3 was turned off it maybe thinks its still in there, so you may have to put it in manually and try ejecting it as normal, i know it would be a pain having to reopen it again but its worth a try imo