I have downloaded the mapping file for traktor and the drivers(I am using windows), set the 2 CDJs 850 as one soundcard in the pioneer driver options and just connected them to the PC following the instructions in the PDF file that Terry posted and it’s working, no problem so far. The only thing is that I can’t see the name of the track or any wave form on the CDJs as they aren’t Advanced HIDs as the CDJs 2000 are. But i don’t really care I have it all on my laptop’s screen.
Thank you guys, for your answers.