I've heard them... they were all one shots from what I could tell, as mentioned above the file-structure is odd and makes almost no sense....
They'd be cool to have just to HAVE them, but from what I remember I couldn't see myself really getting a whole lot of use for them for all the trouble.
The best place would be to look around eBay for one of the original sample CD's....not sure what format they came in but I believe they were Akai or ESX24? Not quite sure.... don't know if WAV's were ever included... I'd doubt it.