So I think the issue with the other dvd drive w/ Soul Calibur III is that the disc doesn't spin in the DVD drive. I'll have to take that apart and try to figure that out.
Regarding the dvd drive with Soul Calibur II, on any of the four 256 units in 246 mode, I don't get a video signal at all.
My SCIII is a burned disc and I only have one disc and one dongle. For SC II, I have an original disc but it's just one disc. I have a security dongle and what looks to be a modified PS2 memory card as well. Two total.