Sony DRU-720A just stopepd reading cds but reads dvds, please help

Goodday mates,
well i was burning a cd 800mb for somereason it froze at like 6% with nero8
so i ended proccess and popped the cd out with the pin hole probably not the best idea, since then the drive dosnt read or burn any kind of cd media programs movies music nothing… have i damaged the drive or can i fix this?