Carrying Bags are available
from MTU for shuttle cases.... or, given that all you need to run hoster is a suitable CD Drive and a big hard drive, there are some ideas for how small you can REALLY go...
Admin note: I have edited this link until we research it further. Please read our Terms and Conditions of using these Forums. You may PM me directly with any complaints. 
To ignore backup of your imported songs is dangerous. We have spend a long time evolving to our automated backup built into all our Portable PC(tm) models that just happens... protecting the investment of time made importing your songs.