✔ 最佳答案
最直接簡單的方法.
到這個網站 :
http://www.keepvid.com
貼上你的連結 :
http://www.youtube.com/watch?v=-a8hWfoAsXs
按下載
›› Download ‹‹ (video.flv - Low Quality 320x240)
Right-click download link, choose 'Save Link As...', and rename file to video.flv
›› Download ‹‹ (video.flv - High Quality 640x480)
Right-click download link, choose 'Save Link As...', and rename file to video.flv
›› Download ‹‹ (video.mp4 - High Quality 480x360)
Right-click download link, choose 'Save Link As...', and rename file to video.mp4
›› Download ‹‹ (video.mp4 - HD Quality 1280x720)
Right-click download link, choose 'Save Link As...', and rename file to video.mp4
連高清都有 .快去試試看吧.