How do I Split Stereo mp3's to mono tracks? (Vegas, SF5.0)

[Queue]

I'm collaborating with others trying to make music. While we are writing, we send around mp3's containing 2 tracks (one hard left the other hard right) to be used in multitracking.

I can make such mp3's in Vegas with ease. I can pull these tracks into Vegas with ease. So far, the only way to separate them (that I have found) is in Sound Forge, and it is like pulling teeth. For a 4 minute song, it'd take me forever to:

1. Load into SF
2. Save Left to mono
3. Save Right to mono

Am I just too damn impatient?? Is there a better way? (non Sonic foundry solutions will be accepted as well).

Queue

 

[Track Rat]

That's it my man.

 

[drstawl]

Think outside the box

Why not use mono .mp3 files and cut out the middle man?

 

[Queue]

Thank you, good Dr., but (in this case) it appears that the two Mono files are 5.0 MB and 4.8 MB, and the stereo file is 6.4 MB. As I do not have broadband access at home, I'm exploring ways to optimize.

Queue

-no problemo going outside of the box, will continue to look...