[anacreon]

Looking at the library parameters on my Kobo Glo today, there were 389 Mo available from 3232 according to kobo: 1.9 Go occupied by the books, 58 Mo by the 15 installed dictionaries. It didn't add up.

So I scanned it with the Where is it app:
- the capacity is 3.15 go, similar to kobo's 3,2
- .kobo is 374 Mo : 259 sqlite database, 109 dictionaries (twice kobo's 58 Mo for the same 15 dict.)
- .kobo-images 505 Mo
- fonts plus calibre metadata 30 Mo
- the rest calibre book files: I didn't add it up but the difference with the rest is close to kobo's 1.9 Go.

I discovered the compression tool only recently, and I've slowly modified old covers, but 505 Mo for images? I regularly clean the image directory.

The biggest on the kobo, an Atwood book has 4 files: 1081 ko N3-full (the size of the cover in calibre), 650 ko Android aspect, 650 ko library-full, 609 ko library grid, total 3Mo.

I experimented compressing the cover in Calibre to 79 kb then uploading the cover with Kobo utilities: only the 3 smaller files were reduced, the biggest unchanged. How can I get all the files to adjust?


EDIT: for the non French, units will be bits, not "octets", very similar, so read Kb instead of ko, Mb instead of Mo and so on.