Leo says Josh would need to get a USB SuperDrive to read the DVD. Then, use a DVD ripping program called Handbrake and VLC Media Player. Both work together to rip and encode the DVD files to a format that will work on his Macbook Air. It works great for DVDs. Blu-rays though are much harder. Of course, Leo recommends doing this only for movies he already owns. Don't give copies away to friends -- that's piracy.