I expecially like playing YTPMV and BONK songs, so I found this song on youtube:
http://www.youtube.com/watch?v=Xr9xRwvmIiQ
is called Bonk gourmet race, but there is a problem!!!!
The song is stereo, the music is divided, and played on the right speaker and the voices and sounds on the left speaker, the guide to convert the songs as a format for HLDJ says that:
"All audio files *must* be in in proper HL audio format (wav format using 8000Hz (HL game) or 11025Hz (Source game) frequency, 16-bit sampling rate, mono-channel) in order for them to sound properly."

I use Audacity and I do those things (usually):
First I split the stereo track in 2 single tracks, I delete one and I make the remaining one MONO and 16-bit, then I change the frequency on the bottom at 11025Hz and I export all as .wav file in the Audio directory of my HLDJ.
But there is the problem with this song!! The two tracks are COMPLETELY DIFFERENT!!!! If I try to render with the first one in game I can hear only some voices and then messed up noises, if I render with the second one I can hear some music and then starts to be messed up too!!
Please help, is there a way to convert a STEREO song to a MONO AUDIO FILE to be played with HLDJ on TF2????
Should I post my PC hardware?