What are the solutions for securing online videos against download theft?

Background: I want to make a video tutorial site (I am using joomla) where members only can view the videos. The videos shouldn't be possible to download, viewing only through Member login. At the moment I just know of quicktime where you can export the video for the web, where it aint possible to download the video directly.

NOTE: Yes, I understand if it is on the internet it can't actually be hindered that someone downloads the videos, but you can make it harder for the thief so that he needs IT specialist skills for stealing the videos (which most of my customers aren't ;) )

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Sorry for posting in the false forum but could someone say where I should have posted the question. It's hard for me to distinguish if this is a serverfault, stackoverflow, web masters or webapplication question? – elhombre Jan 28 at 12:19
It might fit over on webmasters. – Zoredache Jan 29 at 4:40
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closed as off topic by Sam Jan 28 at 11:22

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