I must apologise for misrepresenting Soundhack, in my posting on Feb 03:

I have tried using Tom Erbe's Soundhack, to convert to mono soundfiles (which I
could then route to seperate channels in Logic Audio, but Soundhack always
generates files of length=0 (which is very strange!)

Although this *was* true at the time, I have since got Soundhack to do 4->4x1
perfectly.
I think that maybe the routine is slightly temperamental, but id DOES work.

Sorry for the confusion,

Jamie B