Mega SG compatiblity?

[Galron]

I'm curious how well this works on Mega SG?

While I already have a genesis flashcart, it doesnt' allow for save states on SMS games, and I would like to get one of these if that feature works well enough?

Also can you use the Master ED's FM Audio feature with Mega SG, and how does it compare to the Mega SG's own FM Audio feature?

[Ryan3]

This is done through FPGA hardware emulation and does not require Sega / Mega CD add-on to operate and will not work with the Sega CD or Mega CD attached to your console.