this post was submitted on 25 Sep 2025
        
      
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Yeah. CBZ files have no metadata (I think there is actually a semi-standardized way to add it but almost nobody does?) so it won't work well with metadata based systems. From discussions we had back in the day, the cbz/r/7z/tgz/whatever archives were mostly a necessary evil for file sharing. As long as you didn't modify the scans, people could re-compress or whatever their files and still have a good chance of coming up as alternatives in DC++ and the like. And, at the time, PDF readers were basically Adobe Acrobat and not much else.
These days? Nobody really used DC++ anymore and the general etiquette is to keep an un-touched version in your torrent folder if you want to seed. And basically every web browser is a better PDF reader than anything before 2020. So there isn't much value in not just reformatting to a PDF and removing the need for a special cbz reader.
All that said: I haven't followed the changelog, but it might be worth checking if you have the latest Calibre version. Basically all the package managers are months, if not years, out of date and a LOT of work has been put in to making Kobos a first class citizen.