In this how-to you can read how to remove the bezel from your optical drive.
1. Eject the DVD-tray by using a paperclip in the ejector hole at the front bezel Remove the aluminium sheet carefully.
2. When the aluminium sheet is removed the bezel clips are now visible. Remove the bezel clips carefully. Please hold the optical drive in your hand (do not lay down the optical drive because there will be too much force pushing on the utter right clip) and use small flat screw driver of pocket knife to detach the clips from its holders.