Hi peeps i know its probably been asked hundreds of times but when you search for the word "best" there are none found but i know there are posts out there with best in them.
Any other combination of "media" or "dvd-r" brings up hundreds of posts and ive just spent over an hour looking with no definative answers.

I use dvd masters gen 4s which are supposed to be the mutts nuts but i still get problems booting them it maybe also worth putting the answers in the FAQ post as i am sure loads of peeps have the problems i have:hdspin:

I use fujifilm discs which also support the 4x burn and I don't know about xbox backups as I just got my xbox and haven't modded it yet. It plays the dvd-r movies just fine though so I imagine it would be all right for games. I hope this helps

You are already using the best dye on the market m8.
I know there were some "fake" DVD Master discs so try a proggie called ADVDinfo to check the actual DVD you have. Should be Ritek G03.

search for "media compatibility"