Paperclip problem

Question

Hi I have the video upload applicaton. I am using thoughbot paperclip plugin for uploading video files and i convert the video files into "flv" format by using ffmpeg .

The problem is the users can also upload the "flv" video files, in this case the browser keeping of waiting, the bottom of the browser its shows "sending request to localhost:3000".

When i see the mongral log nothing happed, the server sits idle.

When i upload the other video file format its working fine .. i am not sure what is happening.

here is my model file coding :

has_attached_file :source,:styles => {:thumb => "137x85>" }

validates_attachment_content_type 
   :source, 
   :content_type => ['video/x-   
       msvideo','video/avi','video/quicktime','video/3gpp','video/x-ms-
       wmv','video/mp4', 'flv-application/octet-stream','video/x-
       flv','video/mpeg','video/mpeg4','video/x-la-asf','video/x-ms-asf'],

   :message => "Only Video file at the moment"