RAYMAN: SEGA Saturn Demo Disc - Rarity and Price?

[wingzrow]

I might come into possession of a demo disc for the saturn version of rayman.

How much does this go for and exactly how rare is the thing? I can't seem to find any info about it.

[TheClash603]

Not sure what it is worth, because I only saw it sold once in a lot. I would love the demo, so please shoot me an offer if it is complete with the sleeve.