q1 backing up bitcoins on multibit is the same as making a copy of the private keys and move them to another media?
q2 If you have 1bitcoin in a multibit wallet and you copy the private keys to an external media. Then you use amounts of bitcoins several times, and your multibit wallet shows 0.2bitcoin. Your hdd crashes. On a new hdd you install multibit and import your private keys backup. After synchronising the wallet will show 0.2bitcoin? No matter how obsolete the private keys backup is, it can stil be used to get your present wallet amount back again? Thanks.
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