Each video site's video address in addition to the computer's cache folder (local settings/temporary Internet files) found in, but also through a number of third-party services to extract the absolute address of online video files, so direct download.
YouTube is the hottest, so there are many ways to download YouTube, there are several URLs can be directly extracted, input the current video address can be downloaded address.
http://wish.kuso.cc/youtube/
Http://www.keepvid.com
Http://kej.tw/flvretriever
Http://vixy.net/flv_converter
(The last address can directly convert the YouTube video file to AVI, MPEG, MP3 format, without a dedicated FLV player)
Tudou, 56 i le net Sina video Download method:
http://www.quchao.com/video/
http://www.funfun8.com/tudou/(apply to potatoes only)
http://www.funfun8.com/sina/(Sina video only)
The downloaded video is in FLV format and needs to be played with a special FLV player, such as Flvplayer, Riva FLV encoder, and Storm audio.
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