You simply do not need to download a video most of the time. If you want to share a video, YouTube and most other video sites make it easy, from embedding to emailing to sharing via social networks. Obviously, stealing videos from YouTube is a big no-no.
There's a reason YouTube runs ads: People make a living this way. Watching YouTube videos offline through unofficial channels takes money from Google and video creators. Best Malware Removal and Protection Software.
