Yeah, there is no threshold to how much copyrighted material has to be uploaded. Any upload suffices to make it illegal. If I recall correctly, the intent/justification was to ensure that uploading a single song, or half a single song, is captured by the law, but of course it was written in a stupid way.

Woop, woop, it's the sound of da police!

I heard a rumour that this byte also exists in the Legend of Zelda! No go get em Mr Policeman!