This is the european version "Sonic the Hedgehog CD" for Sega MEGA-CD console.
You can burn it and play on a mega-cd console, or you can use Kega Fusion to play. If you use Kega, you need the mega-cd bios, too. You can find it at [url]http://www.eidolons-inn.net/tiki-index.php?page=SegaCDDevelopment[/url]. Don't forget to set up Kega!