[danielsangeo]

I've never purchased any videos from vidown.com but what it sounds like to me is, when you purchase a video, you can download the video in a certain timeframe, then you can watch it any time you want for as long as you want. You have a copy on your own computer. You just can't download it again after the 4-5 day period, so make sure it's in a safe location, backed up if you don't want to lose it if your hard drive fails.