Emf custom url patch
From Transmission
Mime type sniffer for Embedded Media field
The patch adds more understanding of mime types to the Custom URL provider within Embedded Media Field module
This is needed by the Media_Enclosure_parser_patch which is a patch to the Feedapi Element Mapper module
So when an incoming RSS feed with mime type information it is able to store this information. This stops the process breaking when the file extension isn't right.
Where to get it
link to drupal patch page