EXS 24 Logic Sampler Users Group

Hi, Ive a number of multisamples that were looped in an old 
shareware sample editor (D-Sound Pro) and saved in AIFF 
format. These samples were also dumped via midi sample 
dump to my old Roland sampler, with the loop points intact. 
I tried to load these same AIFF samples into the EXS24 to create 
a patch, but now the loop points are missing. Why?
I think it may be that the old midi sample dump format could 
transfer forward loops, but now the EXS just "sees" an AIFF 
file....and nothing more...
Any ideas or advice?
Cheers