MobiDeDRM and some Kindle books: Invalid File Format?

xportz · 03-15-2009, 05:18 PM

I've purchased five Kindle books from Amazon, and have successfully used MobiDeDRM (v0.05) to decrypt two of them. The other three refuse to decrypt, with the following message: "Error: invalid file format".

The two that decrypt contain "BOOKMOBI" in the header, while the first line of the other three that won't decrypt does not contain "BOOKMOBI" but this puzzling string:

Code:

TPZ0cdict

Does anyone have experience with decrypting these troublesome Kindle files?

Thanks!

pilotbob · 03-15-2009, 05:24 PM

Quote:

Originally Posted by xportz

Code:

TPZ0cdict

Does anyone have experience with decrypting these troublesome Kindle files?

Thanks!

These are Topaz files and can not be decrypted.

I avoid them like the plague.

BOb

desertgrandma · 03-15-2009, 05:27 PM

Welcome to MobileRead, xports.

You can tell if a book is topaz before you download it, by looking at the info.....

If it lists page numbers instead of file size, its most likely topaz.

If you download a sample, and there is a ".azw1" or ".azw2" instead of just .azw, you have a topaz format.

You can contact Amazon and get refunds for the topaz books. Be specific that you do not liked the formatting of topaz........they gotta get the message.

Elsi · 03-15-2009, 05:30 PM

Quote:

Originally Posted by desertgrandma

You can contact Amazon and get refunds for the topaz books. Be specific that you do not liked the formatting of topaz........they gotta get the message.

Yeah, it's probably a good idea not to tell them that you want your money back because you can't remove the DRM.

Lilly · 03-15-2009, 07:34 PM

Quote:

Originally Posted by Elsi

Yeah, it's probably a good idea not to tell them that you want your money back because you can't remove the DRM.

Right I don't think they'll like that at all.

Would probably make more files in that format instead!

I've returned 2 books since owning a Kindle in October and both time it was because it turned out to be a Topaz book and I told Amazon the Topaz format sucks and slowed down my reader. I went ahead and bought both books from BoB for about $2.00 more for each book in Lit format. Yes, I spent $4:00 extra but I was able to load both books on my PRS-505 and Kindle!

xportz · 03-17-2009, 08:15 PM

Just thought I'd update everyone that I was able to use the 7-day return policy to return the books with "formatting I didn't like". Thanks for all of your suggestions!

kevindorsey · 03-19-2009, 05:52 PM

I avoid downloading all topaz boooks. Royal pain in the neck.

snape · 03-23-2009, 03:58 PM

One of the first books I bought for my Kindle has a .azw extension, but I get the error message "Error: invalid encryption type: 0". Does that mean it's a Topaz format?

wallcraft · 03-23-2009, 04:03 PM

Quote:

Originally Posted by snape

One of the first books I bought for my Kindle has a .azw extension, but I get the error message "Error: invalid encryption type: 0".

This means that it has no encryption. Just rename the file from .azw to .prc or .mobi and it will work with any MobiPocket format reader.

snape · 03-23-2009, 04:08 PM

Awesome, thank you!

Sydney's Mom · 03-24-2009, 11:19 PM

I just went back and redownloaded a free book to my computer that I had been trying to change the author (it is not showing up correctly in alphabetical order) with mobi2mobi. Yup, it is TPZ. Since it was free, I guess it won't do me much good to complain.

Since Amazon took its stand on kindlefix, I have gone back and removed the DRM on all of my Amazon books. It is easier to use than kindlefix, anyway (because the wiki was removed).

03-15-2009, 05:18 PM	#1
xportz Junior Member Posts: 3 Karma: 10 Join Date: Dec 2008 Device: Sony Reader PRS-505	MobiDeDRM and some Kindle books: Invalid File Format? I've purchased five Kindle books from Amazon, and have successfully used MobiDeDRM (v0.05) to decrypt two of them. The other three refuse to decrypt, with the following message: "Error: invalid file format". The two that decrypt contain "BOOKMOBI" in the header, while the first line of the other three that won't decrypt does not contain "BOOKMOBI" but this puzzling string: Code: TPZ0cdict Does anyone have experience with decrypting these troublesome Kindle files? Thanks!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
"invalid PID checksum" when using mobidedrm, even though it IS valid.	Haidon	Kindle Formats	141	11-05-2010 12:02 PM
Invalid format	Anders	Sony Reader	8	08-24-2010 12:37 PM
Invalid Format!	gladiator46	Sony Reader	7	04-16-2010 06:50 AM
Mobidedrm.py wont' work with some Kindle books	FRP	Introduce Yourself	4	06-27-2009 06:48 PM
Please Help!!! Invalid Format	Starfish	Sony Reader	3	12-18-2007 10:56 PM

03-15-2009, 05:27 PM	#3
desertgrandma Enjoying the show.... Posts: 14,270 Karma: 10462841 Join Date: Jun 2008 Location: Arizona Device: A K1, Kindle Paperwhite, an Ipod, IPad2, Iphone, an Ipad Mini & macAir	Welcome to MobileRead, xports. You can tell if a book is topaz before you download it, by looking at the info..... If it lists page numbers instead of file size, its most likely topaz. If you download a sample, and there is a ".azw1" or ".azw2" instead of just .azw, you have a topaz format. You can contact Amazon and get refunds for the topaz books. Be specific that you do not liked the formatting of topaz........they gotta get the message.

03-17-2009, 08:15 PM	#6
xportz Junior Member Posts: 3 Karma: 10 Join Date: Dec 2008 Device: Sony Reader PRS-505	Just thought I'd update everyone that I was able to use the 7-day return policy to return the books with "formatting I didn't like". Thanks for all of your suggestions!

03-19-2009, 05:52 PM	#7
kevindorsey Evangelist Posts: 488 Karma: 258 Join Date: Mar 2009 Device: kindle	I avoid downloading all topaz boooks. Royal pain in the neck.

03-23-2009, 03:58 PM	#8
snape Language Lover Posts: 111 Karma: 71544 Join Date: Feb 2009 Device: Current: PRS-350, Kindle PW // Previous: PRS-505, Kindle 1, Kindle 2	One of the first books I bought for my Kindle has a .azw extension, but I get the error message "Error: invalid encryption type: 0". Does that mean it's a Topaz format?

03-23-2009, 04:08 PM	#10
snape Language Lover Posts: 111 Karma: 71544 Join Date: Feb 2009 Device: Current: PRS-350, Kindle PW // Previous: PRS-505, Kindle 1, Kindle 2	Awesome, thank you!

03-24-2009, 11:19 PM	#11
Sydney's Mom Wizard Posts: 2,895 Karma: 6995721 Join Date: Dec 2008 Location: Idaho, on the side of a mountain Device: Kindle Oasis, Fire 3d Gen and 5th Gen and Samsung Tab S	I just went back and redownloaded a free book to my computer that I had been trying to change the author (it is not showing up correctly in alphabetical order) with mobi2mobi. Yup, it is TPZ. Since it was free, I guess it won't do me much good to complain. Since Amazon took its stand on kindlefix, I have gone back and removed the DRM on all of my Amazon books. It is easier to use than kindlefix, anyway (because the wiki was removed).

Advert

Advert