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Old November 28th, 2005, 06:15 PM   #1
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All jpg files have no header

Strange thing yesterday. Went into my documents and none of the jpg files would open with any program. Irview, photoshop, paint. Fortunately I just pulled a hdd tray off another machine and replaced the my documents folder. So it wasn't the O/S that was screwed up but the jpg files had somehow lost their headers. Any thoughts?
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Old November 28th, 2005, 06:25 PM   #2
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Re: All jpg files have no header

What do you mean by "headers"? The name and file extension?

I know that you can rename all the files in a particular folder with a couple of keystrokes, could that have happened?
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Old November 28th, 2005, 06:37 PM   #3
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Re: All jpg files have no header

Nope. The extensions were intact, but the executing programs all said "no info on this type of file, Header not recognized" I tried changing the opening program in tools-view-file types but no joy. They were all set to show thumbnails but all showed irview icons , which I was using, but wouldn't open. When I replaced the "my documents" folder from the other HDD all was well, but I would like to know what happened and why. Curious minds need to know. Needless to say I have backed the whole folder to a DVD disk.
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Old November 29th, 2005, 04:41 PM   #4
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Re: All jpg files have no header

Quote:
Originally Posted by per
...., but I would like to know what happened and why. Curious minds need to know....


Some food for thoughts...

JPEG Header Information
http://www.obrador.com/essentialjpeg/HeaderInfo.htm

The only thing I can think of is somehow your jpegs got corrupted
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Old November 29th, 2005, 04:52 PM   #5
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Re: All jpg files have no header

Thx Xp. That pretty much verified what I thought, That the headers were corrupted but the inquiring mind would like to how and what did it.
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Old November 29th, 2005, 08:57 PM   #6
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Re: All jpg files have no header

Hmm, did you try moving them at all? Download them? Or maybe there is something fishy going on? HD failing? I could go on and on.
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Old November 30th, 2005, 12:35 AM   #7
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Re: All jpg files have no header

More than one photo handler program maybe? I have a problem that explorer can't open my pics but PhotoAlum and Picasa2 can. The pics in explorer say 0x0 bytes but the programs open all of them just fine. It's like that on backup cd/dvd's as well.
As that concerns you it just might be multiple programs wanting to handle pics in different manners is corrupting the pic files a little at a time. Try removing the programs one at a time and see if things return to normal.
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Old November 30th, 2005, 09:47 AM   #8
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Re: All jpg files have no header

That is a thought Seti. I had them opening with irfan view because photoshop is so slow. I have switched back to windows picture and fax viewer, but it's the first time it ever happened and only on 1 machine.
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Last edited by The Unknown; November 30th, 2005 at 10:28 AM.
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