The Videos Length! May Create a Problem...

I am a bit worried after I reviewed my usability test videos. I think they may be just a little short. I know the assignment requirements do not mention how long each test should last but I think Marika mentioned on the discussion board that they need to be half an hour long. I was so busy with other aspects of the tests that I forgot to think about the time. Also, there is not much to do on my proposed websites. The only thing the users can do is search for a business and they did. I think I did however find many problems with the websites that may just save me from this time limit issue.