Every time after you change tape in a stand-alone tape drive, you would need to run an invenotory job.  After doing inventory, the tape label in BE would reflect the current tape.

That is the problem, after running the inventory, continue showing the last name, despite is other new media.

That is odd.. Have you tried restarting the BE services and retrying?

Yes, many times. Is very odd. I will try to uninstall an reinstall de backup unit. Thanks

I put a new tape in my unit and label the media, next when I eject and put other new tape

Did you label the second new tape before you rn the inventory?  If not, there is no tape label to display and BE will show the previous tape.  You must always label your new tapes before running inventory or use them.

Thanks for your help, finally when the GFS policy started to work, all  the media could be labeled.