?????apple???????????????????????????LP????????????????????????????apple???????????????????????????09???????????????????apple???????? ????????Trailer HD??????quicktime??????????????????????LP?????????????????????????????????????????????????????????????apple????????User-Agent???????????apple???User-Agent?QuickTime??????????????????????????????User-Agent???IE???????UA?????????????????????wget????????wget -U QuickTime http://trailers.apple.com/movies/disney/up/up-tlr3r_h720p.mov ?????103M???????????LP?????????????????? Update0: IE??user-agent????????HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent ??????????????????????IE????? Update1: ???User-Agent????? ???? ????????User-Agent.