[quote=@Absolis]
This is why youtube needs better security. It's run by google, they can afford to do some fact checking when it comes to videos being marked as copyright. 
[/quote]

If it ever happens to one of your videos over something thats public domain, like say... Beethoven's 4th or other classical music, just appeal and say you WILL go to court if they strike it again. You can easily get a newer lawyer on your side for an easily won public domain case and incur no court costs due to the other party being countersued for like 5K plus court fees.

Chances are they wont even show up in court or if threatened with court action they'll settle outside the courtroom though, which is a won case either way.

Legal fees aren't that bad either, its only 600 or so dollars which you get back at the end of the trial, plus some extra, maybe less depending on the lawyer.