In Youku's post bar, you will see many people react to this problem, but it has not been solved! Are you watching a video? You can't play it! Download video without software! Because videos or movies are downloaded, they are just distributed while downloading! The video after ie kernel browser opens the video is completely buffered! Tools-—internet Options-Settings under Browsing History-View files to find files in video format, put them in the player, and check the correctness and completeness of the video! Then change its name to ok! The difference between roaming C-user- username-appdata-local-temp-maxthon3cache-temp-Webkit-cache and ie kernel is that roaming will not display flv format, arrange the time, and then the file with the longest corresponding time will be pulled to the player because the system will not recognize the cached file, so check the correctness and completeness. Rename it and add. flv. What flv is it! It doesn't matter what MP4 or video format it is, the extension is only for the player to identify!