As some of you may know, I have a site that was at first dedicated to the Sony CD-RW CRX195E1, a 40/12/48 writer that I thought was based only on the Lite-ON LTR-40125S. Up until now I had only run into such drives, but recently someone emailed me about being unable to burn after flashing his drive with the latest modified firmware based on VS0D for the LTR-48125W. The symptoms sounded similar to those described after flashing a LTR-32123S to a LTR-48125W. His drive had a very weird firmware version, ZYU1, which starts like normal Sony/Lite-ON firmwares with the ZY, and ends like the unique firmware, XSU1 which lets LTR-32123S or LTR-24123S users achieve 40/12/48 speeds.
I'd like it if any of you who have LTR-32123S or LTR-24123S drives that are using XSU1 now or just want to try this want to flash your drives. Who knows, maybe it'll work better than XSU1. It might have some of the Sony features like TurboBoost, but I doubt it since 40x is not considered fast enough to be dangerous. This firmware may not have Mt. Rainier support like XSU1 does.
Get it from my page here: http://dhc014.rpc1.org/oemcollec.htm#CRX195E1
Grammer and links, thanks for the sticky!