Aiseesoft Video Downloader is the professional online video downloader to download online videos from Facebook, Vimeo, Dailymotion, youku and more video sharing sites. The supported protocols include http, rtsp, rtmp, mms, and more threads for downloading task. This Video Downloader software could also convert the local and downloaded video files to any other video and audio formats automatically.Key Functions1. Online video downloaderUsing this video Downloader tool, you can download almost all the online videos from more than 10,000 video sites like Facebook, Vimeo, Dailymotion, youku and more video sharing sites.2. Convert the downloaded video or the local fileThe downloaded video files can be directly converted to any other video/audio formats. You can also directly add local video files to this video converter to convert videos.3. Support multi-downloading tasks and multi-threadsThis video downloader can set maximum downloading tasks and maximum threads for every task.4. Set the specific output parametersFor you to get the exact file from the video site, this video downloader software provides you with more adjustable specific parameters including Video Resolution, Video Bitrate, Frame Rate, Encoder and Audio Channels, Sample Rate, Encoder, Audio Bitrate.5. Support more video site and protocolThe supported video sites can be up to 150 and it supports more protocols including http, rtsp, rtmp, mms.6. Preview the downloaded and converted video fileAfter you successfully download the online video, you can preview the downloaded file on the preview window.7. Show you the downloading/converting speed and progress exactlyAt the bottom of the interface, the exact statistics of downloading/converting speed and the progress will be showed.8. Easy to useAiseesoft Video Downloader has a built-in \'monitor\', which can detect the video being played automatically.