I am wondering if there is a way to tell if I previously downloaded a particular item. I would hate to use my credits to download something that I already have.
@Tina: if you visit an item that you already downloaded, you should see a notice above the download button. See this screenshot: http://i.imgur.com/aFASAk1.png
Thanks Jordan, I haven't run across this yet, but so many items look similar but are a different color.