I have conflicting informations about how to back up my Calibre Library.
Two courses seem to be suggested 1) Export/import all calibre data. 2) Just Copy the calibre library folder.
As Calibre writes small metadata files on each book folder I guess there will be a lote of information there, but I want to understand the difference in each method.
Is there some metadata of the whole collection that is not stored in the Calibre Library folder and is stored instead on the application folder that I would be loosin if I just copy the library folder? Do I lose something, anything, by just copying the Library folder?
Is there a storage size space advantage on using the export/import method? Is it compressed in any meaningful way in which it would surpress the disadvantage of having a back-up file that only calibre could read should anything happen to the software, or has it another advantage that I'm not beeing able to imagine?
Obs: I am shure that this type of question was alred asqued an answered a million times, but I honestely haven't found it. Sorry.