you can always ask the owner of the video that has the response
Unless your video violates the YouTube community guidelines or copyright laws, it is not necessary for you to take down your video. You may also set a video to unlisted or private if you don't want everyone to see it.
yes. you can do so by going to your videos list. and clicking remove video.
Ask polite, or report the video.
Taking a video off of YouTube is your decision. If someone has requested your video be taken down for copyright or privacy, make sure you thoroughly consider the options to make sure that it is a legitimate claim and that you respect other peoples' request if it is true.
It may not work. It's too large for a Youtube video
download a youtube downloader download the video and burn.
Try this: http://jponline.hubpages.com/hub/How-to-Record-Sound-off-of-Youtube-Videos
After contacting the user, you should file a privacy violation complaint to YouTube. There is a form in the YouTube Help Center for this exact purpose.
Yes. It it plagiarism and your video will probably be taken off and you might get a strike, but yes.
Yes
Sometimes.