I'm looking into replacing an Optical drive for a friend's iMac (the G4 articulated model). Not sure if the drive is the same model that would go into a normal desktop and would appreciate some leads. OWC lists the iMac G4 along with other desktops on its replacement Optical drive page implying that it would take the same drive. Also am unfamiliar with the iMac when it comes to opening and replacing. Any instructionals out there? Thanks, Dale Hoffman