>I have seen quite a few concerts on Youtube. They look like concerts that were recorded on DVD (an hour or longer in length). These concerts must be copyrighted. How does it happen that Youtube does not enforce copyrights? (I am not complaining; I actually like what I see; just curious).
YouTube doesn't have to do anything until someone complains:
http://en.wikipedia.org/wiki/Online_Copyright_Infringement_Liability_Limitation_ActUntil they get a complaint they can monetize any content they're hosting (by adding advertising etc.).
Apparently they get a lot of DMCA takedown requests:
http://torrentfreak.com/fox-wants-google-to-take-down-its-own-takedown-request-130404/
Regards. Al
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