One Click Clean Useless sdr Folders in Kindle
What is the sdr folder in Kindle? Many Kindle users have noticed the sdr folders in Kindle’s storage, and it always has the same name as a book we synced or sideloaded. All the files in the sdr folder save the relative information of the specific book, this mechanism makes re-reading a book a better experience. For example, when you finish a book and delete it from your Kindle, the eBook file is gone but the sdr folder stays....
