When a VOB database is stored on a NAS device, the binary data format is determined by the architecture of the VOB server host, not the NAS device. You must reformat a VOB database only if you are changing the architecture of the server host. If you move a VOB from one NAS device to another, even if the device comes from a different manufacturer, you do not have to reformat the VOB database as long as the architecture of the VOB server host does not change.