jtcameron, ready for this answer? There are not simple ways. "There are ways to retrieve DVD keys from the motherboard however they will probably be more effort than it's really worth. However, if it's a route you're interested in following, there are currently two methods for dumping the NAND (Where the DVD key is stored) of an Xbox.
One method is the JTAG hack ( check here ) you would only need to follow this tutorial up to the point where you dump your NAND then you can use another program to read the DVD key from the NAND. However know that the JTAG method only works for Xbox consoles running kernel version 7371 or lower. (You can check what kernel your Xbox is running under the system info.)
If your kernel is above 7371 though you'll need to do the Reset Glitch Hack or (RGH for short, check here ). It's going to follow a similar style to the JTAG hack though you'll have to solder connections to various points boot Xellous and dump the NAND.
Those, unfortunately, are the only two ways to dump a DVD key from a motherboard, so if you don't feel like going through the effort of the methods posted above, your Xbox will not boot anything besides DVD movies.
You can indeed use any model of DVD drive found in the Xbox 360's as long as the DVD key on the drive matches the DVD key on the motherboard; if the keys don't match, your console won't boot games. However, if you intend to use this console on Xbox Live, you must replace the drive with the same model drive that was originally in the Xbox — if you don't, you will be console-banned from Xbox Live. (Meaning that console will no longer be allowed on Live.)
If you wish to access Xbox Live, your best bet of keeping your console from getting banned is to use the model of DVD drive that originally came with that console.
Here is the list of Xbox 360 motherboards. Generally the motherboard DVD drive pair goes something like this.
Xenon — Hitachi, Toshiba, or Philips model drive
Zephyr — Hitachi or Toshiba model drive
Falcon — Benq or Liton model drive
Every revision post-Falcon contains some variation of a Lite-on Drive for security and performance reasons. from here.