Hey Gang, I'm trying to help out a friend who's DVD Rom drive died in their MAC. Are all Internal IDE drved compatible? Is there something I should look out for? They don't have a lot of resources and were hoping to get an inexpesive DVD drive. I can get a hold of a multitude of DVD drives for $20 to $225 for them, but I don't want to get one that won't work. Socan anyone enlighten me on this? IS is OS dependent, hardware dependent, or both? Thanks in advanced for your help!