Inline-Attachments-Module

Are you using the last version posted in this forum? That one contains a list of extensions that should be handled as inline images.

yes i am using the latest version. how do i change or edit.

If you look at the latest version of the module php-file, you will find:

    $img_ext=array("gif","jpeg","jpg","png");

Those are the only extensions which are handled as an inline images. Other attachments are converted to regular links. I would say that the only way in which your video is placed inline, is when your video has on of the listed extensions. That seems a bit weird, so maybe I have not understood your problem correctly?