Alright folks, so here's a possible solution for y'all. :flower:
This is what I have done to revive the all-new TSSTCorp (Samsung) CDDVDW SH-S223B SCSI Drive (as appears on Win7x64 Device Manager):
The situation: I have just inserted an old, hard-to-read (!) DVD into the drive. After a few CRC-Check fails, the drive suddently stops responding, yeah. I urge to reflash its firmware the first time, but forget to close Nero InfoTool. (Note that the company asks to reflash twice if something goes wrong the first time.)
Beforehand steps: So I panic, close InfoTool, reboot after flash. In the BIOS I temporarily disable my 7% overclock, the PnP Mode (Off), and the IDE Mode (Off). I've also disabled my virtual drive by now. And I reflash it again. No dice still won't boot Windows 7 DVD, and freezes my Exploder.
I then decide to flash it backwards (SB02 to SB01 Firmware), but ponder on the "random fixing" of the drive that Vitaminj posted here. I reboot.
Seems like the real thing (resolution): After the SB01 flash fails I finally decide to flash it back to the new S02, BUT I SHUT DOWN THE PC, and remove the powercord for 30 secs. Plug it back, reset BIOS settings to previous + overclock, DVD boots, Win7 reads, tada.
My money on the "catch" is this turn off-PC thingy. Maybe that's how they fix themselves. Or maybe this is a case among so many others, and may not work for everyone.
Good luck on your "Digital CPR". Don't push too hard :Z :bigsmile: