How to make WVM movie work?

[mostafa]

Hello
I downloaded film from "shahid.net" Arabic site and this site have premium subscription "shahid plus" like "netflix" only who have this account can watch films
now after downloading the film it only play 10 seconds then stop working I try every type of video player no one work
I try to rename file with different format like MP4 and FLV etc... and same problem its not work even I try to convert it by any program like Audials Tunebite and this program fail in converting the video
some info about file:
file link is end in "wvm" and you can download the movie from this link
http://l3wvmedia.shahid.net/media/0e...07b39d1710.wvm

or you can play it in vlc by enter the file link and it only work for 10 second then stop
I search for this on google and some sites say the wvm are encrypted by DRM like this post on xda-developer
http://forum.xda-developers.com/show...7&postcount=31

but I have different case I didnt download it from Google but from "shahid.net"

can anyone help me to find out how let this file work?