Playstation Demo's

Are there any Playstation Demo's that are considered rare or highly obtainable I have got a few demo's today and was wondering if any were highly sought after or not?

 

Jason from Game-rave knows / looks for some rare PS1 demos. www.game-rave.com

 

Nba 2 ball is the only one i know of but im am certain there is other rare ones out there

 

Certain trial discs have become very collectible, some are in small numbers and some were handed out as promotional items. So I guess yes there are some rare demos on the Playststion, although you need to know what to look for, I think most generic demos are quite common.

 

Are there any lists/rarity guides that include Japanese demos?

 

Thanks for your help by the looks of it this disc Next Wave Herbst '98 has the only playable pal demo of Lemmings (can be wrong though).

From what I gather its a similar compilation to the Psygnosis '98 demo in the US except that that version has a coloured disk instead of the black one and has more demo's on it.

(picture isnt of my disk, but it is exactly the same though)