If you want you can use Extreme Sample Converter to further convert the programs to any other format, like soundfont or kontakt. The standard sampler in Orion played the akai files nicely, and so should other quality soft-samplers.
I have organized the samples according to original bank and disk. The wav files are in there too, not hidden like in soundfont, so if you want to build own programs from the samples nothing is stopping you. One thing is for sure, this is a great library!
UPDATE:
I added the Roland S-330 System Disks, containing samples like the famous rave choir. Converted to wave and .akp Akai programs with Translator, like the S-550 library.
UPDATE October 2014:
The S-330, S-50 and S-550 files can all be downloaded here:
http://www.sendspace.com/filegroup/iKq1 ... ThkQ%2BgaX



