When you guys sync with Windows Media Player (those who do) do you end up with multiple copies of the same song?

For example, after the first sync, all is fine. Then I'll sync again and I end up with Walk This Way (1), and so on. Am I doing something wrong or is this some sort of oversight?

Other than that, it really works well. I just have to erase the songs off of my SD card before I resync.