your better flashing with ixtreme 1.2c as its the latest one. Something to do with if the xtreme doesn't boot the none stealth games, the 360 makes a log file of games that haven't been booted, then microsoft can get the log file anytime they want. ixtreme 1.2c either stops the log file from being created or the 360 sending the information to microsoft.
mmmmm is there a version of ixtreme 1.2c for hitachi drives?? and also... is there anyway to open the xbox without voiding the warranty??? because the person thats going to flash my xbox says he can flash it without breaking the warranty seals.... what do you think??