Xbox 360 Hacked, Backup discs playable

According to PSP homebrew developer Nytrix has confirmed that someone amongst the Xbox 360 Hacking community has succesful figured out how to play backups. The person would not give out how it was done, or what procedure he used; however, Nyrix figured it out and apparently reproduced the procedure.

I have figured out how it was done in the video. (the video of the guy playing the PGR3 backup) here's the instructions, I am currently playing Full Auto (Backed up).

It's a modified firmware of the Xbox 360 DVD-ROM drive. As you (should) know, all Xbox 360 executables (XEX files) are signed by Microsoft (with a private key only MS has). This means that if you try to change anything to the XEX file, the signature will be wrong and the file will not boot.

Now ... to protect from booting an exact 1:1 copy of a game from a DVD-+R, microsoft gave each XEX file a 'mediaflag'. This mediaflag tells the Xbox 360 from which media (cd-r, dvd-r, dvd+r, dvd-rw, hdd, dvdxbox, dvdxbox360, ...). Changing this mediaflag in XEX is not an option as it'll break the signature (see above), so ... what's done in this firmware hack is breaking the detection of the disc.

Via Xbox360.qj.net