I don't need to tell anyone here that it is never advisable to disable file validation procedures
The following advice is provided for testing / workaround purposes only.
DO NOT DISABLE THIS ON A PRODUCTION SITE
I am not responsible for issues arising from or caused by modification if you choose to comment out the checkMime function
That said you will find it here
protected function checkMime($fileMime) in upload.php
bypass the check mime function for AUDIO file types only (if your component uses other MIME types)
if you intend to use it for a production site
- personally i suggest you do not rely on Cook alone to provide MIME validation
- Google and implement a stronger Audio File validation using the fork
and one final note
remember MIME validation issues can also be browser, server or client specific
Anyhow hope it helps