About report discrepancies
If you find report discrepancies, we suggest you run one or more reports to audit the location of your media. One option is to run the Off-site Inventory report. Look for any unassigned tapes that were left in the off-site vaulting location, and look for any expired media that was not recalled. The All Media Inventory report also may be useful; it shows media on site, media in transit, and media off site.
Expired media may not be recalled in the following circumstances: A tape is only called back once. A tape should be picked up on the day when Vault generated the report that recalled it. If it is not picked up, that tape media ID does not appear on the following reports, and the piece of media may be forgotten. The Lost Media Report shows the media that was not picked from the vault as scheduled.