Here ya go. There are 3 files in this zip. Put them all on your flash drive.
Edit the first 2 lines of List_A.bat and List_B.bat to match the drive letter and root directory you want to sync on Computers "A" and "B", respectively. These two lines look like this:
This means that your MP3s are in the c:\downloads directory and subdirectories. Be sure to format the lines EXACTLY like these. No trailing \'s or anything like that.
All of these scripts are to be run from the flash drive, or external hard drive.
First, run List_A.bat on Computer "A".
Plug into Computer "B" and run List_B.bat. Then run sync_files.vbs.
--->Now move the files off of your drive onto Computer "A". Run List_A.bat and then run sync_files.vbs.
--->Now move the files off of your drive onto Computer "B". Run List_B.bat and then run sync_files.vbs.
Continue repeating the steps with arrows in front of them until the only popup message you get on both computers is "Done".
If you have any trouble, give me a shout, and I'll see what I can do. I wrote this between major problems at work. So i didn't have time to make the code pretty. For all you code monkey snobs out there, I understand, but it's free.
edit: attachment removed: revised script in later post