Select the correct option(s) and add to cart as often as you wish. Do not forget the Mail option for registered mail (?).
You can review the cart and change values as you like, then go to checkout.
If you do not have a paypal account, you can use the normal credit card checkout. Don't forget to put a correct shipping address!
BluRay Full HD 1920x1080 PAL
BluRay Full HD 1920x1080 NTSC
DVD 720x576 PAL
DVD 720x480 NTSC
BD MP4 Video Full HD 1920x1080
Mail option (standard or registered?)
For more explanations see the release announcement: