Thread: PW-3, FW-5.6.1.1, WiFi and OTA updates
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Old 10-31-2015, 10:45 AM   #17
knc1
Going Viral
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Posts: 17,212
Karma: 18210809
Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
Feature support
There is some controversy here over the book format changes, supposedly to support added features.

I don't (yet) have a kfx (kf-10) format book to play with, but ...
Here is a azw3 (kf-8) format book, loaded from my account cloud by two different firmware versions:

As downloaded by FW 5.3.3:
Code:
Kindle/documents
    Flowers for Algernon.azw3
    Flowers for Algernon.sdr
        Flowers for Algernon.azw3f
        Flowers for Algernon.azw3r
As downloaded by FW 5.6.1.1:
Code:
Kindle/documents
    Flowers for Algernon_B003WJQ74E.azw3
    Flowers for Algernon_B003WJQ74E.sdr
        AssetDownloadMetadata.meta
        AuthorProfile.profile.B003WJQ74E.asc
        B003WJQ74E.mf
        EndActions.data.B003WJQ74E.asc
        Flowers for Algernon_B003WJQ74E995f7fcf317b39de64821aaf846641ef.azw3f
        Flowers for Algernon_B003WJQ74E995f7fcf317b39de64821aaf846641ef.azw3r
        Flowers for Algernon_B003WJQ74E.apnx
        Flowers for Algernon_B003WJQ74E.phl
        LanguageLayer.en.B003WJQ74E.kll
        StartActions.data.B003WJQ74E.asc
        XRAY.entities.B003WJQ74E.asc
I.E:
All of those "new features" above, are not a reprocessing of the book, they are just changes in the firmware on the Kindle which is downloading the 'related' files.

Most likely, there is a changed kfReader in the 5.6.1.1 firmware to support all of those 'related' (feature) files.
But it appears that it isn't the book itself which changed.

Although the md5sum values are different, the sizes are identical and:
Code:
$ file *.azw3
Flowers for Algernon.azw3:            Mobipocket E-book "CR!J2V4H98KH5121953YY3MB9DS9HGD"
Flowers for Algernon_B003WJQ74E.azw3: Mobipocket E-book "CR!J2V4H98KH5121953YY3MB9DS9HGD"
Last edited by knc1; 10-31-2015 at 10:53 AM.
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