@Hoods7070 By design the book files are themselves are not updated.
You might be able to get old values back from the existing format files if they've not been been through one of Embed, Polish or Modify. To test select a book and Single Edit Metadata, then select a format (eg EPUB) in the formats box, and click the blue circle 'i', if the old tags are restored, click Next, do next book - repeat until all books done. AFAIK the Set metadata from format selected feature is not available in Bulk Metadata Edit.
If you're on Windows 7 or 8 and the drive that holds the library is 'System Protected' then you might be able to use 'Restore Previous Versions' to recover an older version of the opf files and run the database restore.
But it would be a long and tedious task to do it via right clicking in Windows (File) Manager and I don't know how to do 'Restore Previous Versions' at the command line. There are 3rd party Command Line programs that do it for Windows Server (where 'Previous Versions' are referred to 'Shadow Copies'). I don't know if they work on Windows Desktop.
Bottom Line : before you engage in another 'bout of fiddling' backup your library, and make sure you understand how to restore from the backup.
BR
Last edited by BetterRed; 08-27-2014 at 06:52 PM.
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