Quote Originally Posted by Pungente View Post
SID is only found in 2013 devices and newer, in .System/SID; and are traffic trends, instaSearch, instaAdresses and POIs and FastRouting related.
Edit: After look for the MD2, seems to me that nobody knows for what it serves...; this is a job to the Navigation Software Experts!
MD2 is present in IMG too. But for some device it download as a separate file.

instaAdresses is not correct. It is predicative data for AddressSearch - Address Search Gray-Out for keyboard...