I have recently hit the limit (about 2300) on the number of ebooks I can load w/o losing bookcovers even after clearing out all files in the .kobo/images folder that are tagged with the following in the filename:
- N3_FULL
- N3_LIBRARY_SHELF
- N3_SOCIAL_CURRENTREAD
Now I've started playing with removing the other 3 files tagged with the following:
- N3_LIBRARY_FULL
- N3_LIBRARY_GRID
- N3_LIBRARY_LIST
I've discovered through some trial and error that those files are used in the following way:
- N3_LIBRARY_FULL: Main Carousel and "Single book" view in Library
- N3_LIBRARY_GRID: Lower Carousel and "6 Cover Grid" view in Library
- N3_LIBRARY_LIST: "5 Cover and Name List" view in Library
I don't really use the "6 Cover Grid" view in the Library so I deleted the "N3_LIBRARY_GRID" tagged image files to open up space for about another 1100 ebooks with covers if I'm lucky. Side effect is that now I have blank bookcovers in my lower carousel. If you do what I did I will suggest that you leave the "N3_LIBRARY_GRID" tagged files for the books you have or intend to place in your shortlist. This will prevent blank bookcovers from displaying on the home screen in the lower carousel. From experience I can say it IS BAD FOR DEVICE RESPONSE to have blank bookcovers display especially on the Home screen.
For any Kobo developers reading this PLEASE find some way of increasing the file limit for the .kobo/images folder or place each type of tagged file in a separate folder under .kobo/images. That alone will allow us to have about 7400(?) ebooks complete with the cover images. Knowing this I think with the current setup it would be impossible to really fill even a 4GB SDHC card with ebooks and still have all the cover images intact.
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