Multi PHP Mp4 reader/streamer - support large files

Hi everyone, What i want from you is to create a php mp4 reader/streamer which will use as little memory. I was trying to do by myself with function fopen , readfile and any solution i found on internet but i was unsuccessfull because of some reason the file i was trying to read/stream was over 400 MB and did not buffer to player completely until the end,actually it stop somewhere in halp way. I would like to have support at least 1GB. I am sorry to say this,but i will pay only successfull Creator who create really working reader/streamer. Why i want this ? Because of security reason,if the user is logged in my website then the user can watch videos online. Also diferent file can be on diferent location on the system. Example : Video1 is under location : E:/Media/Video/[login to view URL] Video2 is under location : E:/Media/Video/MyVideos/[login to view URL] Video3 is under location : D:/[login to view URL] These location will be in DB MySql. Example of the script: <?php //User is logged in //Mysql connection and selecting video file $WebFilePath = 'FilePath'; //reading the file //headers for video mp4 //Output streaming //User not logged in //die('Access denied!') ?>