Soul Calibur 2 dongle version questions

I had a couple of Soul Calibur 2 dongle related questions.

-My understanding is that the "Ver. A" dongle images don't have a check for the second memory card for Conquest Mode data, is that correct?

-What is different about the "Ver.C" versions of the dongles? (i.e. SC21 Ver.C, SC22 Ver.C, SC23 Ver.C)

-Some of the software lists have "Ver.D" dongles listed, but I'm not familiar with any other than Ver.A and Ver.C dongles.
Is there any info on what is different about a Ver.D dongle compared to the Ver.A and Ver.C dongles?

There are 3 dumped DVD Versions "SC21-DVD0", "SC21-DVD0B" and "SC21-DVD0D"
There is only 1 dumped dongle version "A10" for 3 regions "World" (SC22), "USA" (SC23), and "Japan" (SC21)

So the region depends on the dongle and the Version depends on the DVD.

DVD0 reports the dongle version: "A10"
DVD0B reports "Ver B"
DVD0D reports "Ver D"

so the 3 dongles and 3 discs create 9 unique combinations:

I've never seen "Ver C" reported in game so if you have a Dongle or DVD that reports that in the test menu you should get it dumped.

I'm not sure which dongle and disc combinations require or don't require the conquest DVD.