I have a 13inch 5,1 intel Core 2 Duo Ali body laptop, came to light yesterday that the optical drive is no longer functional, more than likely due to the fact that it has been accidently dropped a few times. Well out of all guarrantees so I am going to replace it myself, just need to know what replacement drive to buy for this particular model, keep coming up against late year this model and late year that model. so a bit confused as what to buy. Also a pointer to a guide would be good. Any advice or help would be appreciated. Thanks.