I hadn't heard a thing about this before.
http://www.gspsupport.co.uk/index.ph...ct&prodID=4215
Sega has previously released its PC ports of the Sonic games in several collections, including the Sega Mega Pack, Sonic Action Pack, and more, but I guess this is supposed to be a port of the recent XBox release. It's the first time Sonic 1 has been officially playable on the PC that I can recall, anyway.
I'm guessing this was a Euro-only release. Anyone familiar with it? Is the emulation quality improved over those previous PC releases?