List of Unknown tapes in command line

Hi there,

Does anybody know a command to list the tapes that have unknown format ?

In the graphic environment if I go to Devices & media -> devices -> libName -> slots

I can see tapes that have format unknown. Those tapes appear with a question mark and they have to be scanned so they are detected with format Data protector and they can be used.

What I want to do is scan those tapes using command line but to do so first I need the list of unknown tapes.

I tried omnirpt -report -media_list but it doesn't show the format field.

Any ideas ?

Thanks :)