Download Surgeon - Download Surgeon is an audio and video downloader that can download A/V from YouTube and 1000's of other sites. 100% Money Back Guarantee. BBB Online Member.
FastestTube - Youtube fastesttube downloader will make your internet expirience faster harder beter stronger.How to merge video and audio .
Video DownloadHelper - Browser extension to download videos from the Web
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
ClipGrab - A friendly downloader for YouTube and other sites
GrabAnyMedia - Grab Any Media is a popular video downloading extension for the web browsers.