For years I've been giving the stock answer - vocal removal - possible
up to a point on stereo material using phase reversal, vocal
extraction - not logically possible.

I've just been playing with Adobe Audition 1.5. It makes a very
fair stab at extracting a vocal - removing the band. There are
nasty artifacts in the result, but the basis is there.

Any ideas what the process is?

CubaseFAQ www.laurencepayne.co.uk/CubaseFAQ.htm
"Possibly the world's least impressive web site": George Perfect