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SIDECARS


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Initial post: Apr 29, 2013 2:48:22 PM PDT
Penny says:
Do I need the SIDECARS folder in in my documents folder on my Kindle Fire HD 7 for it to work properly or can I delete it?

In reply to an earlier post on Apr 29, 2013 2:48:59 PM PDT
Don't delete folders from your Kindle Fire.

In reply to an earlier post on Apr 29, 2013 2:51:00 PM PDT
Last edited by the author on Apr 29, 2013 2:51:47 PM PDT
Leave it. You'll end up deleting something important. The folder is not taking up any storage space...

In reply to an earlier post on Apr 29, 2013 2:51:43 PM PDT
Penny, don't delete files or folders from your Kindle using the file management system on your computer. It is a good way to mess up your Fire.

Posted on Apr 29, 2013 2:54:28 PM PDT
Penny says:
Ok. I am trying to clean out documents on my kindle that are not showing up on Manage Kindle through Amazon and was just wondering what ones I need to keep in order to keep it in proper working order. I have a ton on hotmail docs, and other personal docs that I need to delete and just wanted to do it safely.

In reply to an earlier post on Apr 29, 2013 2:56:25 PM PDT
Have you already deleted any file or folders from your Fire using your computer?

Posted on Apr 29, 2013 2:56:44 PM PDT
Penny says:
Thanks for the help everyone.

In reply to an earlier post on Apr 29, 2013 2:58:08 PM PDT
Penny says:
NO, just looking into whether it is a good idea.

Posted on Jun 26, 2013 11:50:32 PM PDT
Funyfarm says:
ok so penny asked ,, what is the folder for ?? any one have any idea ??

In reply to an earlier post on Jun 27, 2013 12:52:01 AM PDT
Last edited by the author on Jun 27, 2013 12:56:54 AM PDT
Dragi Raos says:
By convention, sidecar folders generally contain metadata, lock files and other auxiliary information connected to but not part of the main content file. You are welcome to explore the particular Amazon implementation through USB or, better yet, something like ES File Explorer. My guess is that deleting particular files from those folders will not impede Fire functionality significantly, but deleting the folder itself might. But then, there is always "reset to factory defaults", available even in the bootloader, if you mess the device to the point of it not being bootable.

Edit: just to clarify, we are just users, and have no "insider info" on things like internal Kindle data structures beyond that which is available on the web (or obtained by fiddling with our devices). "Pros" have no NDAs with Amazon or anything like that, so, obviously, they don't share any privileged info with us.

In reply to an earlier post on Jun 27, 2013 12:53:09 AM PDT
Dragi Raos says:
Penny, perhaps you will find those documents in "Docs" library on the device? Deleting from there should be safer.

In reply to an earlier post on Jun 27, 2013 1:18:01 AM PDT
Funyfarm - In addition to Dragi's great info:

Sidecar files, also known as buddy files or connected files, are files which store data (often metadata) which is not supported by the source file format.

For each source file one or more sidecar files can be created. This is in contrast to "metadata databases" where one database contains metadata for several source files.

In most cases the relationship between the source file and the sidecar file is based on the file name; sidecar files have the same base name as the source file, but with a different extension. The problem with this system is that most operating systems and file managers have no knowledge of these relationships, and might allow the user to rename or move one of the files thereby breaking the relationship.

Source - http://en.wikipedia.org/wiki/Sidecar_file

Posted on Jun 27, 2013 6:49:37 AM PDT
Last edited by the author on Jun 27, 2013 6:52:18 AM PDT
Charlie says:
Sidecar files also contain info such as page numbers, highlights, public highlights, and bookmarks.

Deleting sidecar folders doesn't interfere with basic reading, but will impact some enhanced features like highlights and bookmarks.

The Paperwhite is a bit strange in that deleting books or personal documents via the menu on the Paperwhite removes the books/documents but leaves the sidecar folders in place. Since I send multiple newspapers and blogs and webpages to my Paperwhite each day, there gets to be a huge accumulation of .sdr folders. Several times in the past I have used USB to delete ALL .sdr folders with no obvious effect other than losing bookmarks. So nowdays, I just find the one book I'm actually reading and leave that one folder.

My experience is with the Paperwhite. I don't know if the Kindle Fire HD is identical.

In reply to an earlier post on Jun 27, 2013 7:00:29 AM PDT
No, it's not.

In reply to an earlier post on Jun 27, 2013 7:48:19 AM PDT
Last edited by the author on Jun 27, 2013 8:41:03 AM PDT
Charlie says:
I know the Fire and Paperwhite are two completely different devices. Duh.

I should have more explicitly said "I don't know if the .sdr folder operation on the Kindle Fire HD works the same as the Paperwhite".

ETA: This thread reminded me that it's been a few weeks since I cleaned up my Paperwhite. I just deleted, via USB, 183 .pobi files and 312 .sdr folders. Then rebooted the Paperwhite so it cleans up its file management system. Regained about 200MB of space.

In reply to an earlier post on Jun 27, 2013 9:28:37 AM PDT
Dragi Raos says:
"I should have more explicitly said..."

That's what Pineapple meant - internal folder and file structure is different.

"I just deleted..."

I personally prefer to have fewer books on my device, but with complete info like page numbers, X-ray and those few annotations I make...

Posted on Jun 27, 2013 10:02:33 AM PDT
Charlie says:
The .sdr folder gets restored by Amazon as soon as you open up a book.

The content files I'm deleting or periodicals, not books. .pobi, not .mobi. I did just delete all of .sdr folders though. But my experience is that even if I screw up (or am lazy) and delete even the .sdr folder for the book I'm reading it doesn't have any effect.

Out of curiosity I just checked. I deleted the .sdr folder for a book, then ejected the Kindle. When I opened the book with wifi on, it knew the last page read. Then I went to home on the Kindle, hooked it up to PC and found that the .sdr folder had been reloaded from the Cloud, including x-ray file. I deleted the file again, but turned off wifi before opening the book. Last page read and bookmarks were missing. Turn on wifi and wait 10 seconds, and they are restored.

I haven't tried it on a book with .apnx page number file, but I'm pretty sure it will be restored at the same time as the other files in the .sdr folder.

In reply to an earlier post on Jun 28, 2013 2:42:07 AM PDT
Dragi Raos says:
Interesting - thanks.

Posted on Jun 28, 2013 10:14:41 AM PDT
Penny says:
Thanks for all the input, I appreciate it. I will just be leaving things alone and stop being so OCD about little things.
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This discussion

Discussion in:  Kindle forum
Participants:  8
Total posts:  19
Initial post:  Apr 29, 2013
Latest post:  Jun 28, 2013

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