[scubacat]

Hi - I upgraded my computer and had to download a new version of calibre. I imported my old library, but lost the data in my custom columns - specifically whether I had read the book or not. Is there a way to preserve this data in case I ever have to do this again? I'm not seeing any way to add custom column data to the metadata files to make it move with the book next time. Or is there a different solution? Thanks