If you want to convert videos to mp4 or mp3 format, go to onlinevideoconverter.com and click on The United States of America button and click on either convert to mp3 or mp4 to convert the video. After you click on that you need to copy the YouTube link which is in green text and then paste it into the URL box on onlinevideoconverter.com. Hit the forward arrow directly below there and it will ask you which format you want to convert it to. Choose your desired format and click the forward arrow. It will say connecting to server and you will have to wait a minute for it to start converting. After it has successfully converted, You will see a video box with the play arrow on it. That means it is ready to be saved. Directly below the video box should be a button that says save to PC. Click on it and it will save your video. And then when you look at your downloads application, it will have the downloaded video that you wanted.
ytconv.net this website is good and fast but the only bad thing is that you have a limit on how long the video can be. it takes a while to convert and then you click download. it will take you to adfly.com then you wait like 10 sec and click skip ad on the top right corner. Ive used this website for sometime now and is great
Ok first install Firefox Then go to like add ons or something like that and download "downloader, or maybe it was called download helper I'm not sure? The go on YouTube whe you go on a video on the top right corner with be like 3 circles or yellow red blue click and it will give options of you wan to download it Hope it helped
I like youtube too and like watch youtube videos on my android phone and tablets. I download the siftware from this website: http://www.leawo.com/youtube-download/ After install, just copy and paste to download youtube videos. Really useful. Try.