Before you buy anything Hook you should try burning with a different disc
I couldnt burn the one you gave me to try but mine burnt the same film with the same settings fine
I'll drop one of mine through your door on the way to work tomorrow and see if you have any joy with it
Its only 2.4X but the disc quality seems to be vital with DVD burning
If you got all those free ones and they're the problem you could still use them for data and music ok