Hello Timmy,
I looked thru my service manuals and If I may suggest. Changing the DVD is a fairly major undertaking. The laptop will need to be disassembled so unless you are sure of how to reassemble it, I would find a service tech to do it for me. Once you have the drive out is should be simple enough to cross match another replacement drive..
Forgive me. I know you expected better. Maybe one of the great staff of PCHF has more details than I...