azw/azw3 and amazon cloud drive

[user105]

Hi,
i got this problem:

After converting epub to mobi or awz3 and uploading the file to amazon cloud drive folder: my kindle documents. its not showing on my kindle.

but if i take the same mobi file and sent it to my kindle email address @ acc folder: my kindle documents. the mobi file gets converted to azw (without the number 3) and my kindle shows the file.

is it possible to create the azw file with calibre?

im using kindle paperwhite 2

[kovidgoyal]

azw and mobi are the same thing. The only way I know of to get books ionto the kindle from the networks is to use send to kindle or email them to your kindle or put them on w website like dropbox and use the browser on the kindle to download them.

[cybmole]

the same limitation is there when I move azw via usb, either manually or with calibre, or via dropbox; my kindle fire does not accept them as books

maybe it accepts some books, some of the time, but if so, I cannot figure out the criteria,
the obvious route of epub -> azw3 in calibre then send to device, never worked when i tested it. its probably looking for some field or code that identifies is as a genuine book-from-amazon.

or maybe I have to manually lose the "3" - a dummies guide for this would be good, covering how to sideload from PC / from cloud storage.
- a de DRMd amazon purchase ,
- de DRMd epub purchase , converted by calibre to AZW3
- general non-drm epub, withouth downgrading to mobi format

I read that is is relatively easy to sideload .mobi files, but also that the mobi format does not support all of the epub-like functionality that azw includes , so calibre: epub -> mobi -> kindle or calibre: azw3 -> mobi -> kindle could lose some formatting ?

[cybmole]

update - I realised that I was hopelessly confused on this issue. so I read lots of threads - got even more confused.... decide I'd have to get stuck in & re-test.

so I picked out 4 books that are already in azw3 in my calibre library &
1. I download them to kindle fire tablet, from the library copy that i have in dropbox. the result is as I recalled from previous testing , I get 4 downloaded files that I can't "open with" kindle reader because it won't play. the android OS does not know what to do with the format.

so
2. I delete those, connect via USB instead , send same 4 books from calibre. This time: All OK - they show up in "books" & are readable.

Thus I'm thinking what's the difference, what does calibre do that i did not do manualky..... so I delete those & redo step 1 , leading to step 1.
3. I have them downloaded them but this time, using ES file explorer I move them from my default download folder into the books folder on the kindle Fire. and now they are readable.

Thus the secret , which Amazon don't document for you, seems to be that you have to put the books into the books folder, I guess that is what calibre does.

and in conclusion - you can download your azw3 books from your cloud storage & read them on kindle but only if you ensure they go directly into the books folder, or manually move them there after downloading

please, if I have any of this wrongs, then someone please correct me. I (temporarily anyway) think I've got it now !

( fro the record, I actually used my calibre cloud app to pick the azw3 books out my dropbox calibre library, but I reckon I 'd have got the same outcome by patiently sorting through the folder structure within dropbox then exporting specific files- I suspect that trying to use amazon cloud in place of dropbox would be trickier - put books into a. cloud, let cloud sync them - into documents?., manually move or copy them from documents to books folder.... ? )

it all goes to remind me that my current habit of read in epub format via the mantano app on kindle fire, with calibre companion doing the fetching, is much simpler