Help With Lead and Backing Vocal Separation Using Software?

I know that some pieces of software like VirtualDJ can remove the right/left channel to leave the center track.

I was wondering if someone who has VirtualDJ can record the center and right/left channels of some acapellas for me.

If someone will help it'd be appreciated.

i use audacity then i go to vocal reduction/isolation and click isolate vocals and put power to 5 it makes DIY Lead Vocals :p
(does not work on all songs)

I see, well, thanks for your help.