Online video streaming is a very common activity for the current availability of the Internet service. Downloading the video from the web service such as YouTube is one of the common activities among the Internet users.
youtube-dl is a command-line utility which allows to download various formats of the video available on the webpage; Video DownloadHelper offers similar feature as youtube-dl, yet it is a Firefox addon. Both tools support various websites, not only YouTube alone.
In my opinion, youtube-dl though is a command-line utility, it is more powerful than Video DownloadHelper. Firstly, it can download video from YouTube by choosing different combination of video format and audio format, then it will merge the video and audio together as one file. This provides a freedom to decide our own video format. Secondly, youtube-dl is able to use “generic” method to download the video from a website, if the website is not supported. That means, if Video DownloadHelper cannot detect the streaming video, then we can try to use youtube-dl.
If you watch YouTube frequently or occasionally, and you have not a very fast internet connection, YouTube Center surely is what you will like.
Quite a long time, I found that YouTube does not work like before. I cannot pause the video and wait downloading the video completely then only watch it. Now, the video will download a while then stop downloading. Besides that, navigate to different time frame will need to re-download the video. As a result, I cannot watch the video freely after downloading to the web browser.
But using this YouTube Center, now I can disable the Dash Playback (as mentioned above). Now watching YouTube makes me feel easier.
YouTube Center is actually a userscript. However, there is also the Firefox extension, Google Chrome extension, Opera extension, etc.