I used the www.onlinevideoconverter.com to convert the Youtube video to COMPUTER, but some videos can only watch the video and cannot be saved after doownloaded. kindly please advise any way to save every Youtube video.
Thank you,
JohnFirst of all, if you have problems with this specific program then you should go to the website for that program. Now then, after having said that, here is a more generic reply to your question
Here are some things you can try.
You can rephrase your question in such a way that it only takes a few words and then you can submit that phrase to Google and do a search on that idea.
You might be taken to the site that has a product they WANT you to buy so you can download YouTube videos. But I don't think that would be a good idea. However, a Google search also can take you to sites that have discussed this idea at some length. People have been trying to download movies from YouTube for a long time. This has been well documented elsewhere and I don't see any need to rehash it again here on this forum.
In case you don't know, that copying videos from YouTube or any other site Present the copyright problem. If you copy a motion picture and then try to resell to other people you are breaking the law.
Which brings up the question of why do you want or need to download that YouTube video? I can't think of any reason I would want to download a YouTube video, unless I was up to SOMETHING that YouTube prohibits. YouTube has a terms of use that specifically says there is a limit on what you can do with YouTube videos.

Please understand, there are many here willing to help you, but this question has been answered many times before and it has been brought out there are some legal problems with telling people how easy it is to download a video off of YouTube.
I hope this answer is of some help to you. If you really cannot find where it is on the web, here is one of the best sources of this kind of information without actually crossing over the LINE of breaking the law.

http://www.wikihow.com/Download-YouTube-Videos

That is the best I can do for you. :)u If a video is unable to be ripped from youtube then its likely that its protected for a reason. Regular videos likely download fine, but music content and any movies that might be there will likely be protected. Other reasons why videos cant be downloaded is if its adult content on youtube that requires a confirmed adult account through gmail etc. If you hit adult content it USUALLY prompts for you to logon to gain access to the content.I use the Firefox "Video DownloadHelper" add-on.Quote from: BC_Programmer on November 20, 2016, 12:05:14 AM

I use the Firefox "Video DownloadHelper" add-on.