> 4) Redumping of Qsound.bin (unless this was done already, so someone please clarify that).
QSound.bin was decapped, imaged, and typed up by the typing monkeys. There were, however, some regions that were un-knowable due to crud on the die. Thus the BAD_DUMP status.
There was a bit of analysis a month or two ago, and it was found that the code in the dump was almost identical in two places. This realization gave us more confidence in the dump, but it's still not 100%.
In an ideal world, another decap would happen to a QSound chip that has no obscured bits, so the monkeys can work their magic again and the dump can be confirmed 100% good. This is a bit trickier than it used to be since recent advancements in CPS2 knowledge have made nearly *all* CPS2 boards useful - dead boards need no longer be dead - and thus their prices have gone up.
Maybe someone will step up and mail a QSound chip to someone who is good at decapping soon. Maybe not. Time will tell.