Some of the cable adapters being talked about here:
http://www.controlbooth.com/forums/showthread.php?t=3657 might make your life alot easier doing this.
I would think that if your recorder is stereo, a cable with a 1/8" stereo male
plug on one end and two 1/4"
mono (right and left) male plugs on the other end would be ideal. (you also have the option of using
RCA inplace of the 1/4" and buying
RCA to 1/4" adapters too.... that way you have flexability to record from
RCA if necessary).
Theoretically, baring the
line/
mic level issues above, recording in a manner similar to what you are talking about is very feasable, although the final quality will largely depend on the recording qualty of the voice recorder. (A little $15 voice recorder isnt going to sound NEARLY as good as a device specifially made for professional recording)
If you have model info on your voice recorder so we can take a look at it, it would be very helpful too.