Can you show me how can i update disc drive ?The software can i use to update? May be you send in my inbox. Thanks BroYou weren't on LT2.0. There is a warning that states not to update if you're aren't on 1.9 or 2.0. You'll have to update your disc drive before you can finish the update.

If you update to this firmware it will revert your disc drive back to OFW. It would be best to flash to OFW and then update so you don't flag the console. So revert to OFW, update and then upgrade to LT 2.0. Although I would say wait until Dec 6th as the new dashboard along with LT 3.0 will be released.
no more DVD ROM firmware customization.It would ban the console from live and if you tried to use your profile and gamesaves on another 360 they would show up as corrupt. It is possible to make them uncorrupt but a bit of a pain. There might be a few other little things that happen too but can't remember. So yes, you would still be able to play originals and backups.