A proper "All Pack" isn't just a snapshot in time; it is a dynamic collection that ideally includes the drops. If you are serious about your collection, ensuring that the pack includes the latest A to Z releases—including recent series like "Private Island" or new hardcore illustrations—is vital for continuity.
Group your collection alphabetically (A-E, F-J, etc.) or by creator. Flooding a single root folder with thousands of files forces your e-reader to re-index the entire directory every time it opens, causing severe lag. A proper "All Pack" isn't just a snapshot
Here's a list of duplicate issues in your collection: A proper "All Pack" isn't just a snapshot