The source the article cites [1] contains this sentence: These videos were blocked by YouTube’s Content ID system, not taken down via DMCA notices This probab

The source the article cites [1] contains this sentence: These videos were blocked by YouTube’s Content ID system, not taken down via DMCA notices This probably means that neither YouTube nor Constantin Films took any active steps to take down the video. It was probably all automatic through content fingerprints. It works like this: Content providers, e.g. Constantin Films, create fingerprints for their catalogue with a fingerprinting service, e.g. Audible Magic. Sites with user generated content e.g. YouTube check any uploaded content for a matching fingerprint. If anything gets identified as copyrighted content it gets blocked. I work at a video platform, and this is how we deal with copyrighted content. Usually, this happens during upload, my guess is that YouTube started to use such a service at some point and now cleans their content, which takes some time. I think the parodies are only collateral damage. One more reason to reform copyright. http://openvideoalliance.org/2010/04/hitler-downfall-meme-gets-dmcad/?l=en http://openvideoalliance.org/2010/04/hitler-downfall-meme-ge...