I'd like an account to submit dumps. I have a Plextor PX-716A (soon to have a 712 as well), the recommended UGREEN IDE to USB adapter, and a substantial library of IBM DOS and early Windows era games, including some on the missing list (Indianapolis 500 black-box) and some that aren't even listed (Battlezone Gold - disc 2).
I've had a few accepted dumps on Dat-o-Matic, and I'm familiar with the basics of the DAT format and hashing.
Let me know if you're interested. Thanks!