Couldn't find the answer on Mroogle. 1. Removed optical drive from 2007 MacBook Pro 2. Installed Optibay alternative in MacBook Pro 3. Installed 320 GB HDD in "Optibay" 4. Attempted to watch a VIDEO_TS folder with DVD Player 5. Upon dragging folder to DVD Player icon this message appears: There was an initialization error A valid DVD drive could not be found [-70012] 6. Attempted to load with VLC, no luck. 7. Videos are located on HDD in "Optibay", FYI. I've found a little program that apparently switches the optical drive DVD player looks for to an external one, which I posses, but I don't want to have to unhook my USB dvd drive from its happy little resting place at my desk, just to watch a movie on my TV, sitting in bed, at a friends' house or on a plane or something. ANY FIX FOR THIS??? I know I could encode them down to h.264 or something with Handbrake, but that's time consuming and diminishes the video quality. I'm not that interested in doing that.