Which emulator (and version) to use for Soul Star (SCD)?

[Nyukki]

What issues are you encountering and what system are you trying to emulate on? I use Fusion for all my Windows Sega CD needs.

[nightrnr]

I'm on a laptop PC with Win 7, tried it on Vista previously as well. Hasn't worked in Gens or Fusion for me, meaning it either doesn't boot or it stops working after the first stage. Maybe it's a Bios thing.

Have you tried turning on "Perfect Synchro" (or whatever it's called). I know Popful Mail requires that to boot up?

If it does at least boot up, I doubt the Bios is to blame.

--EDIT--
Just tried the game on Fusion. I did indeed have to enable Perfect Synchro, but it seemed to work just fine for me. I only played until I got to the 2nd level (free range level).
Hope it works for you