You also need to uncheck the “Request all media in the sequence for catalog operations” option.
I tried Inventory and catalog again with that change. The error changes but the catalog operation still fails. Now the error is "Final error: 0xe0000900 - The requested media is not listed in the media index and could not be mounted. To add the media's catalog information to the disk-based catalogs, run an inventory operation on the media and resubmit the Catalog operation. Final error category: Backup Media Errors. "
I also tried unchecking "Request all media in the sequence for catalog operations" but it still fails.
Is the media itself bad?
