Hi! it would be great is banshee could handle mass storage devices that are not handled by the usb layer (for example the mmc layer with SD cards readers on recent Thinkpad X series). Upstream bug filled, and a quirk and dirty patch has been submitted.
These kind of device need special care. More upstream bugs filled, and patches proposed.
-- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers