If the files and/or folders on a disk which is listed in your database have 
  been changed, you may wish to update the information in the catalogue. Select 
  the files or folders you want to update and select Edit|Synchronize 
  from the menu, click the Synchronize button ( ) 
  or press the CTRL+R key.
) 
  or press the CTRL+R key. 
 
 
  Add new files - Allows the addition of new files. 
  
  Delete missing files - Allows deletion of files that are 
  no longer found, from the catalogue. 
  
  Check volume information - Checks the serial number, the label 
  and file system of a volume. 
  
  Eject media after adding - Allows ejection of removable 
  media after adding (when possible). 
  
  Ignore the symbolic link when scanning (NTFS) - Contents 
  of symbolical links will be passed while scanning. This can be convenient if 
  you have folders referring to each other in a tree. 
  
  Always synchronize the structure of the archives - If this 
  option is not checked, either the size or the date of modification of an archive 
  must have changed for the scanning of the disk structure to occur. 
  
  Always update the descriptions - If this option is not checked, 
  either the size or the date of a file must change for the re-creation of descriptions 
  to occur. 
If you have inserted another disk by mistake, you will be informed about it:
  
 
If you have not saved since the 
Synchronize operation, you can restore 
the old database by taking advantage of the operation "Revert": 
File|Revert. 
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