I tried another program that kept reminding me that I used it too much.

This works well, is easy to configure, and does exactly what it's supposed to - syncs between my computer and my USB card. Unlike some programs you can setup more than one copy scenario, then select as many as you want to run. Others I have worked with allow you to create several copies, but I could only run one at a time.

The only issue I have with it is that the text in the status bar is too light to read, if another version is created I'd suggest a darker text.