This tutorial will help you to know how to download all of your video in YouTube will be downloaded in HD. You can download videos in originally at what format you uploaded in .zip format.
YouTube is an Social Networking site for Videos and its has nearly got 700 new videos per hour. Suppose we might have want to download our YouTube videos we can. but, the resolution of the video may be in low quality. you can also able to see all YouTube videos in High Resolution.
If you want to download all your YouTube videos in HD ( High Definition ) you can download it. Just visit this link and then click on the check box beside of YouTube and then Click the Create Archive Button.
Then for the first time it will ask for verification just click on the verify button and then it will start creating your archive. once completed just click on the download button to download it.
If you have many videos then your archive will be splited in 2GB Each. and download one by one.