I know it doesn't support compressed disk images (such as compressed VHD files), but does it at least support non-compressed VHD files? Like does it actually read the header on these (VHD files are a Microsoft-invented disk image format that contains I think either a header or footer with all the data needed to describe a physical drive), and get the drive geometry from this header? Or does it only support flat disk images, requiring the user to specify the disk geometry in the imgmount command?