You are using Firefox, aren’t you?
You could try looking at system/libraries/Upload.php
line 199:
$this->_file_mime_type($_FILES[$field]);
Change that line to:
$this->_file_mime_type($_FILES[$field]); var_dump($this->file_type); die();
Then do upload your .wmv
file. It would show something like application/octet-stream
or whatever. Add that to your mimes.php
. Hope this help =)
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