i downloaded a halo.iso file as well as a bin/cue file so i could back up my own copy of the game. but ive tried alcohol 120% and nero but both of them when i put the cd into the drive and try to install it nothing happens. so i extracted the bin file on to my hard drive using winiso and it then installed fine and i was able to play the game but it did not run very smoothly unlike the original. then the next time i went to play the game again using the backed up version i got an erro message saying please insert cd? wot has gone rong? and could some one tell me how i can back up the game so i can run it off the cd instead of extractin it to the hard drive. i have tried every thing i can think of. plz help!