Well it seems like your right Nexus windows is making these files.
Windows uses these to keep information about what thumbs belong to withs file and where they the order is of the files on none fat/ntfs file systems.
Disabling the caching of thumbs fixed it.
Just one problem under win7 you don't have the option anymore to disable this. Under folder option that is.
After some looking around using google i found the next trick.
Find the following key in your reg. using regedit.
And change the value to
Hope this post helps anybody else