You can, so you will be able to record your mix in stereo in your computer as a WAV file (audio). Get a cable that will enable you to connect the LINE OUT of your DJ mixer to the computer LINE IN connector on the soundcard of your computer.

Then you will need a program to record audio.. Sound Forge would be great but it is expensive.. You can try with the WAV studio program that comes for free with your soundcard (maybe you dont have any, but hey look in this box again, there is generally a cheap one that will work). Cool Edit 2000 works too.

Anyway.. you will open this program and press RECORD. you will have many options (quality, etc..). Choose 44.1Khz, Stereo, 16Bit. This is CD quality. Make sure your computer "hears" the signal you are sending to its LINE IN.

To tweak the signals in and out of your computer, double click on the yellow speaker that's at the bottom right corner of your desktop. There, you can move the volume sliders of RECORDING and PLAY signals your computer hears or not.

After a few tests you will record correctly without any problem.

Godo luck!