I bought a Khypermedia-branded BenQ DW800A and upgraded its firmware to DW822A (B3IC). The drive now thinks it can burn DVD-Rs. Ha!
TYG01 (4x): Plays back on computer DVD±RW drives, but cannot fully play on standalone DVD players. (I tried three different models; none played back without incident.)
CMC MAG (2.4x): Appears to be unformatted on all three DVD±RW drives (after the B3IC firmware thought it had burned a full disk).
RITEKG04 (4x): Hangs on all three DVD±RW drives.
The B3IC firmware does appear to be able to write DVD+Rs quickly and successfully. But for DVD-Rs, it is essentially worthless.