Binary content with bson serialization

Hi 
 
Can anyone provide me reference links to post binary content using BSON Media Type Formatter?
 
I want to write a web api service which should accept multiple files and call it from a .Net client. I think BSON media formatter can help here.
 
I know one solution could be to use multi-part content.
 
Please suggest.
 
Thanks
 
Rohit