A new firmware release for the Toshiba-Samsung xbox360 drive...

(v5.2) Disc-LockOn added for chronic open tray consoles.
(v5.2) DVD Video disc problems fixed.

The new "Disc-LockOn" feature was specifically written for troublesome ms28 drives that refuse to boot all types of media. Disc-LockOn is additional laser calibration performed when disc inserted returns a cannot identify disc type error. This will not make a bad laser good, but it is the best you're going to get via software.

Official Site: n/a (by commodore4eva)
Download: n/a (May be illegal under EULA/DMCA)
News-Source: xbins.org

http://forums.xbox-scene.com/index.php?showtopic=575809

Kul!!!