If you’ve bought a Creative sound card (Audigy or Extigy) between 1999 and 2004 with false advertising on the label, that is. It’s not cash, unfortunately, it’s 25% off any product up to $62.50.
Seems a class action suit was filed, and was settled out of court. It’s a lame settlement, but better than nothing, I suppose.
Here’s the form to signup for your voucher, along with links to the court docs: