Problems downloading Kindle books

Question

I have owned my Kindle paperwhite for a year but I have recently started having problems downloading books. In the past I have always downloaded books to my Mac and then transferred to my Kindle via usb.  However, in the past month or so some books download properly, but some do not. When the books download properly they have a .awz file name, e.g. Alice in Wonderland.awz but for the books that don't download, they either just download as FSDownload (no title at all) or sometimes the title of the book but no .awz e.g. just as Alice in Wonderland.
I suspect it might have something to do with my software because when I tried downloading the same books on a PC, they showed up fine with the .awz file.  I think this problem coincides with when I installed Mavericks.
I have contacted Amazon customer service and we tried all sorts of things and none of them worked.  Finally, the customer service people suggested I try here.
Any help would be greatly appreciated.
Thanks.

Answer 1

Hi Heather,
Today I discovered I'm having the same issues... I own an older version Kindle and always buy online, download to my Mac and then transfer the file by USB.  However today I tried for 3 books and the first one was not a problem.  The 2 others would not download with the correct file - its just an empty page with the title FSDownloadContent.
This link sort of helped:  http://www.amazon.com/forum/kindle%20customer%20service%20q%20and%20a?_encoding= UTF8&cdForum=Fx1GLDPZMNR1X53&cdThread=Tx1YPISXRX8YOGC
basically Paul Bramer says: 
1. I deregistered my Kindle for Mac ("Manage Your Kindle>Manage Your Devices")
2. I REMOVED the app from my computer.
3. I downloaded the latest version of Kindle for Mac (Department: Kindle>Kindle Free Reading Apps>...) and followed the install directions. (btw, I learned that Amazon has no system for alerting us to app upgrades!! Hard to believe with all the account info they have.)
4. I opened the newly downloaded app. It repopulated with all my archived and downloaded books, included the "problem" book.
5. When I tried to open the problem book, I got the same message, ""The book could not be opened. Please remove the book from your device and redownload it"...but wait...
6. I removed the book (from my downloads folder) by deleting it.
7. I went to the Archives where it was still listed (I didn't need to resend it to the Kindle for Mac app but perhaps that would be a needed step for some). I clicked on the title, it downloaded and...ta da...the book OPENED.
Hope this saves somebody the hour it took me :). If the problem does in fact lie with an out-of-date app, Amazon owes us the courtesy of alerting us to app upgrades (and making an easier upgrade path).
HOWEVER, it lets me open the books on my computer using Kindle for Mac but still won't let me transfer it with a working file to my actual kindle!  So not a great fix since I want to read the kindle not my computer on the beach!
Hopefully someone else out there has a solution...?
thx