Rip it directly to the internal drive. That's it, that's all you need to do. If you have it on your PC you have to split the file that's over the 4GB-1B limit before transferring it to your internal drive, the manager will take care of the rest. Just search for PS3 file splitting programs if you need. I don't remember if it requires an original disc or not while running, I always use one anyway.
Edit: I just noticed you're the same guy who asked last time. You just don't listen do you, I already explained why it won't work in an external drive.