Here is a great review of Dimension Pro, from Sound on Sound, that talks a bit about its ability to load in lots of different sample formats, its loop point detection, etc.:
http://www.soundonsound.com/sos/may06/articles/cakewalkdimension.htm I happen to use (and LOVE), Native Instruments Kontakt 5, which may be the best sampler on the market, but Dimension Pro may well be quite capable of doing what you need/want to do, so check out the article above, the Dim Pro documentation, and look for YouTube videos and other instructional web material for additional assistance with it.
Bob Bone