We all know the problems that have been pointed out in the past with Blah dvd / 101cd but might be worth a look If they get it working.
Currently advertised on their site as all hd-dvd @ £6.99 but still showing at full price at the minute.
Don't forget 8% quidco
(when you click the link, hit refresh and the box wil appear top right.)
Just also noticed they apparently have Planet Earth in stock!
Apologies if this turns out poo!