soundforge (for example) for setting loops in wav and wav2akai to convert it to .s files
you should find it in files here also at http://www.mda-vst.com/
nikko - i have heard of issues with looping wav's (ie in modular). the problem has to do with non-audio info as part of the file. you must strip this stuff out in soundforge (or other editor) to get the file to loop.
wav 2 akai is a free prog in the file area at the yahoo group pulsar list. . .