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invalid jpeg marker type??
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stevieleaky
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Join Date: Oct 1999
Location: canada
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Apr 23, 2003, 06:12 PM
 
OK, my mac blew up but the hard drive was saved.... I have all these images(jpg) in it that i need. I put the hard drive in my PC and transfered the .jpg's to the drive on the pc through macdrive... now it seems when I try to open the images, I get :

image preview= invalid file type
adobe photoshop= "invalid jpeg marker type"

are these files now corrupt or is this just a basic fix, or is the ol PC / MAC compatibility an issue here/

its funny though, some of them would work, and then they would not, some only work in the small preview in explorer...

I wish I could try these images on a mac again to see if they open up but I have no access to one....

any help would be nice...
Leaky
     
Rainy Day
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Join Date: Nov 2001
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Apr 23, 2003, 10:51 PM
 
My advice is to try as many graphics programs as you can. On the Mac, i've come across JPEG's which won't load at all in certain app's, but work just fine in others.

But it could be a PeeCee vs Mac thing too, as you suspect. Perhaps someone here knows more about the JPEG format (marker types) to say for certain? Do you have a JPEG from a good Mac disk? Try loading it to see if you get the same error. That might give you some clues as to whether this is a compatibility issue or something else. Best of luck.
     
vsurfer
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Apr 28, 2003, 09:39 PM
 
I've come across similar problems when jpegs have come through a corporate pc firewall / virus protection / Lotus Notes, and the file and mime types get split up. In those cases where the file has been split into two (mime and jpeg) , oddly it's the mime file that opens. But usually only if you open it directly in Photoshop or Graphic Converter .

Other times the file gets scrambled in transmission badly and I get "invalid marker" type messages.


If you can't open any of the files directly from an imaging program it makes me wonder if perhaps something happened in the transmission from one drive to the other that garbled them.

Any chance you could put the HD in a Firewire or USB enclosure, if your other machine will accept. Just a guess.
     
DesignerTerp
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Join Date: Mar 2003
Location: DC Metro Area
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Apr 29, 2003, 01:45 AM
 
Originally posted by vsurfer:
I've come across similar problems when jpegs have come through a corporate pc firewall / virus protection / Lotus Notes, and the file and mime types get split up. In those cases where the file has been split into two (mime and jpeg) , oddly it's the mime file that opens. But usually only if you open it directly in Photoshop or Graphic Converter .

I had this problem sending .jpgs to FedEx--I finally figured out they were using Lotus Notes and had recently switched. When I send photos to them, I use GraphicConverter and save without the resource fork.

To the OP: I would try Graphic Converter--its what I use when I need more saving options and other technical stuff.
     
   
 
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