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xemu requires game discs to be in the form of ".iso" disc images. You can
backup your legally purchased games by:
xemu requires game discs to be in the form of `*.iso` disc images.
* Using a real Xbox with a custom dashboard to transfer the game files to your
computer over FTP.
!!! warning "Disclaimer"
The xemu project does not endorse or promote piracy. We don't permit sharing
of games on any channel. The only legal way to acquire these files is
to dump them from your real, physical media.
## Backing Up
Fortunately games can be acquired for relatively cheap and it is very easy to
create a game backup. You can backup your legally purchased games by:
* Using your computer to connect via FTP to your real Xbox running a custom dashboard. You can
simply insert the disc and transfer the game files from the `D` directory to
your computer.
* Purchasing and using a special, reflashed DVD drive. [More details here](http://wiki.redump.org/index.php?title=Microsoft_Xbox_and_Xbox_360_Dumping_Guide).
You can create an iso image using [extract-xiso](https://github.com/XboxDev/extract-xiso) (command-line only).
## Creating ISOs
### About "redump" ISOs
### extract-xiso (Command Line)
Redump-style ISOs contain data for both the video partition and game partition. For now,
you'll want to extract the game partition for use with xemu. You can do this by simply
extracting everything after the first 387MiB. For example, using `dd`:
[extract-xiso](https://github.com/XboxDev/extract-xiso) is a command-line tool
to create Xbox-compatible disc images.
```
dd if=my-redump-style-dump.iso of=my-game-partition.iso skip=387 bs=1M
```
!!! warning
You can then use the `my-game-partition.iso` with xemu.
Use only 32-bit builds of extract-xiso. 64-bit builds can cause subtle
issues resulting in dirty disc errors.
### Qwix (GUI)
[Qwix](https://avalaunch.net/qwix/) is a popular GUI based tool for creating
Xbox compatible ISO images.
!!! warning
Qwix is not an open-source project, it is not maintained by the xemu project. Use at own risk.
## About "redump" ISOs
"Redump" ISOs are a full dump of the game disc. Xbox game discs contain two
partitions, the first is a video partition which you can access from a computer
or DVD player. This partition usually contains a short video instructing you to
insert the disc into an Xbox. The second partition contains the actual game
data. A "redump" ISO contains both of these partitions.
If you have used a customized DVD drive to produce a backup of your game disc,
you more than likely have this format. As a sanity check, these images are
typically ~7GB in size.
xemu is not currently compatible with this format, but you can extract the
second partition of the disc image for use with xemu. Unfortunately there is not
a GUI-friendly solution for this yet. You will need to use a command-line tool.
You can do this with `dd` or with the `extract-xiso` utility.
=== "Using `dd`"
```
dd if=game-redump.iso of=game.iso skip=387 bs=1M
```
You can then use the `game.iso` with xemu.
=== "Using `extract-xiso`"
```
extract-xiso -r game-redump.iso
```
You can then use `game-redump.iso` with xemu. Your original will be
`game-redump.iso.old`.