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'Batch Register' is a feature of MyAlbum and is a batch processing feature. Basically, you put 100 or so pictures in a folder on the server, and then tell MyAlbum what category you want to add them to, and hey presto. It renames them and moves them to where they need to be and then you delete your source folder. Only trouble is that it's an admin only feature. It would be a major security risk to allow your users to do that.
Ted