[ddouglass]

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Are you going to use the external drive to keep your KMA files on and play them from in Hoster. This can be done if that is the way you want to do it and many do. This keeps your main hard drive from filling up and in case of a system crash will keep you from losing them.
If not you do exactly the same thing you did before except you are copying from the external to your C: drive.
To "add"them to your Hoster just build the database and add the folder on the external or internal drive where they are stored in the box by clicking Add Folder and then click rebuild button. This will add them all into the new Hoster location and will all play.