quote: Any disc should spin, unless the the 360 has telekenesis drm.
quote: And before you compare it to the XP on Mac thing, realize that the xp on mac thing has been published publicly and confirmed by others. That one isn't a violation of the DMCA, no copy protection was circumvented, no laws were broken (provided that is a legal copy of XP he used). The Mac thing just overcomes technical (not drm) issues.
quote: TheSpecialist and his team was able upload unsigned code into the firmware using a modified Xbox 360 game that was not signed correctly. Once the firmware was modified the hackers removed or modified the software that detects the signed Microsoft XEX code, thus allowing them able to play unsigned games on that machine.
quote: What is this? A bit more info...
The hack is a modified firmware of the Xbox 360 Hitachi-LG GDR-3120L DVD-ROM drive (the security in the Toshiba/Samsung TS-H943 is said to be similar, so it's probably also possible with this drive ... but it does require it's own hacked firmware of course).
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 copy of a game from a DVD-R or other recordable media, 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, ...) the XEX is allowed to boot. Changing this mediaflag in the XEX header is not an option as it'll break the signature of the file (see above), so ... what's done in this firmware hack is 'break' the detection of the disc.
Retail games usually get a mediaflag where they only allow 'dvdxbox360' (Xbox 360 discs - different than a normal DVD because it has some specific bad sectors and special info in lead-in/out that can't be written with a standard dvd burner). The modified firmware will trick the DVD drive into reporting a DVD-R (or other) as a DVDXBOX360 to the Xbox 360.