What are these files? (Page 2): Well, the one sentence supports my theory of proprietaryness- Most likely by Lumix. "Typical uses include storing the author of a document, the...

Longshadow Loc: Audubon, PA, United States

Linda From Maine wrote:

Longshadow, please Google "extended attribute... (show quote)

Well, the one sentence supports my theory of proprietaryness- Most likely by Lumix.

"Typical uses include storing the author of a document, the character encoding of a plain-text document, or a checksum, cryptographic hash or digital certificate, and discretionary access control information. "

Lumix set up and implements/uses the information.

Guesses, because I don't have a Lumix and none of my editors use "side-car" files that I'm aware.
Sorry I'm not much help on this one.....

Can you copy one and change the extension to ".dat" and upload that file?

StanMac Loc: Tennessee

User ID wrote:

Did you rotate images in playback, or mark them as favorites or as protected, or do any other similar minor thing to them ?

I don't generally do that kind of adjustment when viewing them in camera. But that doesn't mean I didn't for these. In one directory only 43 of the 973 images has a ._ file 6 out of 491. So I must have done something to instigate the camera creating those files.

The odd thing is, this isn't the first time I've examined this SD card. I've viewed and downloaded some of its contents previously when I was running Windows 10 on a defunct PC. and these files weren't present, or viewable, then.

Stan

CHG_CANON Loc: the Windy City

Look at your color space setting in your camera and remove AbobeRBG. This will fix the file name issue and other likely problems when you fail to stay with the sRGB default color space

Longshadow Loc: Audubon, PA, United States

StanMac wrote:

They are not a bother to me other than they show up in my file listing, take up memory, and I don't know what use they are.

Stan

If Lumix provides an editor, IT may use them..... possibly other editors if it is a standard data format.

If the editor is expecting their existence, deleting them may cause a problem using the image file in an editor.
One test would be to rename them with an added character at the beginning of the file name. (I use "DelMe" when testing things like that. Not deleting the file. (I have a couple of directories with the DelMe prefix for thing I think are no longer required, or by software I don't use, just to see if something tries to look for them. That way I don't actually delete the files or directory, just in case...) Or move them to a temporary directory so they can't be seen in the directory with the image files, then try and open an image in an editor. If the editor barfs (technical term), then it is used and required.

DirtFarmer Loc: Escaped from the NYC area, back to MA

I managed to download your sample and get it into Hex Editor XVI32. It starts with

Then there are a bunch of zeroes, after which it ends up with

Longshadow Loc: Audubon, PA, United States

DirtFarmer wrote:

I managed to download your sample and get it into Hex Editor XVI32. It starts with

Then there are a bunch of zeroes, after which it ends up with

Cool!
That's what I was going to try but I could not get the file onto my system.
Glad you could.

StanMac Loc: Tennessee

CHG_CANON wrote:

Look at your color space setting in your camera and remove AbobeRBG. This will fix the file name issue and other likely problems when you fail to stay with the sRGB default color space

Color space is set at SRGB.

Stan

StanMac Loc: Tennessee

Longshadow wrote:

Well, the one sentence supports my theory of propr... (show quote)

After Dirtfarmer's post, do you still want the file with the extension of .dat?

Stan

Longshadow Loc: Audubon, PA, United States

StanMac wrote:

After Dirtfarmer's post, do you still want the file with the extension of .dat?

Stan

Not really, Dirtfarmer confirmed what I was looking to see.
Thanks anyway.
It's a data file, not an actual JPEG, but it's unique to a JPEG.

Some people may call them "side-car files".
(Goes with the (hooked to) motorcycle (the image).)

rbmcdill Loc: St. Louis, MO

Google calls the ._ files metadata. In this case, it means things like the file is ready to archive plus file system data that we don't normally need. One attribute is ATTR-OFFLINE. That would probably show up because you either tried to download the file or something then removed the file from the system when you unplugged the drive. Why they are showing up is beyond my knowledge.

User ID

CHG_CANON wrote:

Look at your color space setting in your camera and remove AbobeRBG. This will fix the file name issue and other likely problems when you fail to stay with the sRGB default color space

I doubt that its Adobe RGB. That would have affected the file names of the real jpg images, as is shown below with files from exactly the same camera model:

(Download)

StanMac Loc: Tennessee

Longshadow wrote:

Not really, Dirtfarmer confirmed what I was looking to see.
Thanks anyway.
It's a data file, not an actual JPEG, but it's unique to a JPEG.

Some people may call them "side-car files".
(Goes with the (hooked to) motorcycle (the image).)

So, if I copy the image file from the SD card to my PC for editing, will the "sidecar" file be copied as well? Or will I have to select and copy them both to be sure the image file reflects the data in the "sidecar" file?

Stan

Longshadow Loc: Audubon, PA, United States

StanMac wrote:

So, if I copy the image file from the SD card to my PC for editing, will the "sidecar" file be copied as well? Or will I have to select and copy them both to be sure the image file reflects the data in the "sidecar" file?

Stan

I would imagine you'd need to copy both files.
Windows Explorer would not know the sidecar is associated with the image.

You: "Copy file a to drive d:"
Explorer: "Okay, done."

That's it. One file.

DirtFarmer Loc: Escaped from the NYC area, back to MA

Longshadow wrote:

Cool!
That's what I was going to try but I could not get the file onto my system.
Glad you could.

I put the hex editor onto my system years ago. It's still on my disk but Win10 doesn't show it when you right-click 'open with', at least at first. I have to keep at it.

Open with > choose another app gives me:

The 'more apps' is greyed out and sometimes doesn't appear at all, but there is a space there and I can click on it and get apps that I have used in the past, or a dialog that allows me to navigate to the location of the app I want.

PS: it appears to still be available. https://xvi32.en.softonic.com/

But it just occurred to me that it was the OP's file that you couldn't get onto your system. What I did was right-click the 'download' link and then 'save link as'

Longshadow Loc: Audubon, PA, United States

DirtFarmer wrote:

I put the hex editor onto my system years ago. It'... (show quote)

Yup.

I also downloaded HexEdit years ago.

But I haven't installed it yet on the new system. Hardly use it anymore.......
I think I still have the original install file, I archive those.(Still using WS-FTP '95

)

Windows knows of no association for HexEdit. You'd have to add the association for file types.
I didn't do that because I might use it for any extension. I just would "choose an application" or just open HexEdit and go get the file.

Now I'll have to see where the install file may be....