The Organizer tab will automatically sort your font collection.
Specify the path to the font source and to the folder where the sorted collection will be stored. Select the number and properties of subfolders in the new collection. Click the Organize button and wait until sorting is complete.
All corrupted font files a click on which displays the message "The requested file was not a valid font file" are moved to the folder "ERROR - Corrupted Files". It is a great way to remove broken files from your collection once and for all.