Megaupload has a system in place where copyright holders can issue a takedown notice. It's similar to Youtube.
Is that the thing where the video goes private/goes away on Youtube? The copyright owner taking them down?
Video going private wouldnt get affected by copyright owners unless you post your video on the public sites like this forum lol.
But when you get flagged by YouTube's system on copyright infrigment, you get a warning where you can make dispute claim. If you dont, your video gets removed, muted or get random Ads placed on it.
Btw I got flagged yesterday , apparently my Chrono Trigger videos were the property of GoPotatoTV (another youtube partner channel) ~.~
Made a dispute and pm'd the owner of the channel, he removed the warnings *-* so my videos are safe now lawl.