My Nephew was downloading the Halo 3 Map Pack and all of a sudden it frooze and he lost all of his game saved data!Is their something that he can do to get back all of his lost data?

For some reason when i plug in my Wireless Apapter in the back of my system it sometimes takes about 30 minutes before it will read it!Is their something wrong or something that i can do to fix the problem?

but remember it's Jeff opnion!I mean for hardcore Zelda fans the score might seem insulting but it's still his opnion!But we know that it will be a great game!