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Years ago I spent a lot of time trying to figure out how to get a Kindle to "Whispersync" sideloaded books. Eventually I figured out it was as simple as having
by oaththrowaway 4y ago
Years ago I spent a lot of time trying to figure out how to get a Kindle to "Whispersync" sideloaded books. Eventually I figured out it was as simple as having an ASIN included in the books metadata (Calibre does this automatically now, but it was fun figuring it out manually with Python scripts).
Originally I thought the ASIN had to be valid, but eventually realized it didn't even matter, just had to match the pattern.
- RockRobotRock 4y agoWow, TIL. So you're saying you can get the audiobook legit through Audible and use a downloaded EPUB and it will still work if the ASIN is in the metadata? This is definitely worth a blog post or something at least.
- innocenat 4y agoNo. A USB side-loaded book in AZW3 or KFX format with embedded ASIN, and tagged EBOK, is treated as Amazon books. Everything sent via Send to Kindle is tagged PDOC so they behave differently. Normally, books sent via USB can't use Whispersync to sync reading position between different devices. OP is saying that if you embed ASIN into the book (can just be a random ASIN) and sideload the same books to multiple device, they will sync, too.
- RockRobotRock 4y agoIs there any way to do this with the Kindle app instead of a physical Kindle?