It is your call. The damages that they can get may be statutory and attorney's fees if the downloaded video was copyrighted within 90 days of its publication. If not then they would only be entitled to the actual damages or financial harm that they suffered as a result of your downloading. Which could probably be a few bucks. However, I can tell you that you should go to the US copyright office and review the copyright infringement remedies section.
Answered on Aug 24th, 2011 at 7:48 PM