Yeah, you're problem is Halo 2 won't fit on a regular hard drive because of it's size. you're going to have to either get a larger hard drive, or create a back up of it. What I meant by method was are you using dvd2xbox or ftp..
ok if its a iso disk just copy the disk it if not ftp it using flashFXP http://forums.afterdawn.com/thread_view.cfm/213943 heres a tutorial on how to ftp
D:\ is your optical drive. Save it to E:\games and only transfer the necessary files (as in, nothing in bink and no dashupdate.xbe) Even then, chances are that it won't fit. And if it does, then you'll have little to no space left and your Xbox will suffer performance losses.
today i tried put midnigth culb 3 and halo 1 and halo 2 but they all said error code 112 or when i went to the log they siad end copy procces i dont know whats with my xbox
do it again...or mabey ur disk are like dirty or damaged so it might help 2 clean i had the same problem i just cleaned them and they worked
Sounds as though you're still doing something wrong in UnleashX. Get dvd2xbox off xbins and use that instead, as it's very straight forward.