149w ago - This weekend
C4E released BenQ iXtreme LT v1.2 which includes an internal PFI that improves the reading of some discs and Samsung iXtreme LT v1.0 for XBox 360 alongside JungleFlasher v0.1.75 Beta (152).
Download:
BenQ iXtreme LT v1.2 /
Samsung iXtreme LT v1.0 /
JungleFlasher v0.1.75 Beta (152)
To quote from the NFO file:
• Supports all BenQ Drives (62430C, 64930C)
• Supports all Liteon Drives (74850, 83850V1, 83850V2, 93450)
• Totally re-written code optimised for minimal patching
• Whole banks of firware now untouched
• New Drive response timing engine accurately mimics original drive timings
• Full disc stealth used by default
• Waveless booting , disc images are assumed to be correct!
• Split-Vid used as default
My PS3 YLOD when exiting this app,With iris manager its fine btw im using rebug 4.41...
Might as well be here 
I can tell you these FW won't work on them, cause all the new systems have the Liteon drives. But yeh you can update the firmware on the new drives, depending on which version you get.