We had not addressed this specific need of honest businessmen who could get their songs ripped off by employees.
We are very close to having a new means to encrypt songs to only run on the Hoster they were recorded on, if you want to protect them. This will also allow us to sell songs that only run on the Hoter they are purchased from (Buy Now button clicked in Hoster to incorporate the Registration Code to protect them with).
If we wrote a batch processor to encrypt all your KMA songs, this would insure you are not ripped off. This would not be simple to write and easy to execute. I'll add that to our spec we are working on.
However, once encrypted, there will be NO WAY to remove the encryption.