backup tutorial
this tutorial will show you right from scratch how to do it
What you need
A modded xbox running a replacment dashboard (if you dont have one get one at the usual places) some way of ftping to your xbox. how to get these files and how to use them will be explained in the tutorial

OK first off you need to boot either your evox bootdisk . make one by downloading evox from the usual places and then extracting all the files and make an iso with craxtion http://www.craxtion.com . then burn the iso with nero (goto file -> record image and select the iso you made) burn the image on to a dvd-r or cd-rw. now put the disk in your xbox and you should see evox!
if you are really feelin half assed then you can download team xaviers multidash installer (Team Xaviers multidash installer ) or team xaviers evox installer (Team xaviers evo-x auto installer and build your hd. change the ip in system settings to 192.168.100.3 subnet mask 255.255.255.0.0 (or something like that should already be like it) and gateway 192.168.100.1 this option was if you installed evox as the main dash.
Now on your pc (if you are running windows xp) go into network connections and then your network card which your gonna connect to your xbox through and right click it and select properties. goto tcp/ip terminal and then select configure at the bottom (or something like that)
change your ip to 192.168.100.2 and then your subnet mask should automatically appear (shazam) then select your gateway and make it 192.168.200.1 . download flash fxp from http:www.downloads.com and conect to your xbox.
Now that installing evox is done you can put pxhddloader or any other game copiers on your hard drive. go into E:\apps or F:\apps and make a folder called gamecopier or whatever you want to call it. then link to it in evox. if you have the evox 3921 it should be in apps after you ftped it to your xbox and put it in there.
Now copy a game to your hard drive using one of those tools. ftp to your xbox and transfer that game over to your computer using flash fxp. open craxtion and make a iso with all the files of that game you copied to the hard drive. and go into nero file -> record image and select the iso you made with craxtion. burn the iso at 1 timez write and record at once.
you may have trouble setting up craxtion download the runtimes and other files and do all the things it says.
you may have also noticed i didnt use xiso . heres a whole thread saying why you shouldnt use it http://forums.xbox-scene.com/index....T&f=11&t=34283& .
hope this helps!
cheerz
SNICK!