After 10.8 Upgrade: Build in CD/DVD Player is DEAD

After 10.8 Upgrade my CD/DVD on my MacBook Pro Intel Core 2 Duo 2.53 GHz is dead - NO more CD/DVD Player - All Music or Movie Discs will be useless.

10.8 is full of unnecessary things(Gatekeeper, scrolling issues, no RSS in Safari...and on and on...) - Total Rubbish :-(

After reinstall 10.6.8 all working again.

This is UNEXCEPTABLE - One step forward, ten steps back !

DO NOT UPDATE ON 'OLDER' MACS WITH BUILD IN CD/DVD(MB,MBP,iMACS...)