I would love to use omnimix. I was running 0830, and I grabbed both of the above:
Your first link with the 0915 patch, and applied that
The omnimix patch, and applied that.
When I run it via spice64, it boots up just fine as LDJ JAA.
When I run the batch file, in the console window, I see it booting as LDJ JAX, but it also says "0 patches applied", and then I get the USB IO error described in previous posts (FM Device Not Found).
Any ideas @ryuzo7980?