Oh here is a fun one. Youtube provides creators with a list of "copyright free" songs they can put in their videos. Turns out, one of their "copyright free" songs has a sample from a song from 1956 owned, in part, by Warner Brothers, Sony, and three other record companies:
In common with many YouTubers, Matt didn’t want any copyright issues on his channel. So, to play things safely, he obtained the track ‘Dreams‘ by Joakim Karud from YouTube’s very own audio library for use in his intro. Unfortunately, this strategy of obtaining supposedly risk-free music from a legitimate source still managed to backfire.
Very early last Friday, Matt says he received a “massive barrage” of emails from YouTube, targeting “pretty much all” of his KSP videos. The emails said that Matt’s videos “may have content owned or licensed by SonyATV, PeerMusic, Warner Chappell, Audiam and LatinAutor.”
[...]
‘Dreams’ composer Joakim Karud allows anyone to use his music on YouTube, even commercially, for free. And the fact that Matt downloaded the track from YouTube’s own library was the icing on this particularly bitter cake.
“So I guess this library can’t be trusted at all,” says Matt. “YouTube might just remove songs from it after the fact and then shrug off any consequences for videos that use that music as you know, shit happens.”
Matt said he had to time out to manually protest the automated claims against his account but he says his overtures were immediately rejected, “almost like it’s an automated bot or something.” But things get worse from there.
After contesting each claim and having all of those rejected, Matt says the only option left is to appeal every single one. However, if an appeal is lost, the video in question will be removed completely and a strike will be placed against his account.
It’s three strikes and you’re out on YouTube, so this is not an attractive option for Matt if the music companies somehow win the fight. So, instead, Matt is appealing against just one of the complaints in the hope that he can make some progress without putting his entire account at risk.
This is why I no longer include copyrighted music in my youtube videos. I have included it in the past, because music is fun! But ultimately it's not worth the hassle.