Platform SDK: Removable Storage Manager

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Import media pool
Media Service for Windows 2000 puts media in an import media pool when the Media Service recognizes the on-media identifier, but the medium is not cataloged in the current Media Service database.
Imported state
Indicates media whose label types are recognized by Media Service for Windows 2000, but whose label IDs are not cataloged by the Media Service.
Incompatible state
Indicates media that are not compatible with the library in which they were identified. This media should be immediately ejected from the library hardware unit. Media Service for Windows 2000 puts Incompatible media in the foreign media pool.