Best of Bolder has some really fun conchs. And a lot of other unique and useful sounds. Dennis did a great job converting these from Akia (so they don\'t have all the bells and whistles a dedicated Giga lib would have, but they are well worth the price, IMHO.
Try the BBC sound archive
Some years ago I was asked by Robin Wood of the Beeb to find a source for a Harrison Birtwistle piece which used the same. since I had no source, I suggested David Ledsam of Soar Valley Music and he managed to obtain some from Polynesia. They were used by the BBC for the concert and I believe that they actually took recordings of them for possible future use.
It\'s worth a try at least.
Last time I knew of it, the BBC Sound Archive was somewhere near the museums in London on Exhibition Rd ???
From what I was given to understand by the library/archive, one can gain access to any recording (either of a musical piece or sound) if held in the library/archive. Obviously should you wish to use the music or sound there would be a copyright fee payable but I don\'t know how much it might be for individual sound effects and notes recorded of various instruments.