This is because you have enabled "catalog DB"
the help file reads...
Configure Job-Level Merge Options (Windows Servers)
If you enable the catalog database, you can take advantage of job-level merge options that allow you to choose how to handle catalog files after backup.
To configure merge options:
When submitting a job from the Backup Manager, click Options.
When the Global Options dialog appears, click the Operation tab.
On the bottom of the dialog, select one of the following database options:
Record Detail Information--Select this to log detail information and all information pertaining to the source and destination in the database. If you enabled the catalog database and select this, catalog files are stored in the CATALOG.DB folder after all detail information contained in the catalog files are merged into the database. If you did not enable the catalog database, the catalog files are deleted after the merge.
Record Job and Session Information Only--This is the recommended method. Select this to log only job and session information in the database. If you select this, no detail information will be merged into the database. If you enabled the catalog database and select this, catalog files are stored in the CATALOG.DB folder. If you did not enable the catalog database, catalog files are deleted afterwards.
Disable Database Recording--Select this if you do not want to log any information about this job in the database. Select this option if you are backing up the BrightStor ARCserve Backup database or if you have limited disk space.
Note: You must submit a Merge Media operation before you can use any of the database views to restore this data.
Hope this helps..
So it Shall be Written!
So it Shall be Done!!