speaking of saturn, do you have any idea of when the starting logo got corrupted?
and is the system loading CHDs in current svn? I don't have any file to test further the driver, but I was curious if regression only involved the logo or also the games
The video issue has been there for a few versions now, from memory. As for CHDs, I don't know if the few I have are valid or not (since MESS is the only emulator that uses them, as far as I am aware), since they have never worked other than the QSound demo Arbee mentioned some time ago. From what I understand, the CD block needs a lot of work.