(adsbygoogle = window.adsbygoogle || []).push({}); Do you have to format, or can you just restore the patch backup wihout formatting?
Thanks.

You do not have to format just delete your mw2 patch that is in your game data utility then backup your ps3 and continue from there hope i helped:laim:

My PS3 has over 300 gb of content downloaded

If you restore a backup, you will lose everything you had. What you can do is make your own backup so you dont lose your stuff.