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[SOLVED] JPEG Photo CD - Kodak Photo CD Is There A Difference?

 
 
Mostly Organised, Often Confused
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      Sep 12th, 04, 4:56 AM
Is there a difference?


I got some photos put onto a photo CD a couple of years back and on the
disk it's labelled as "Kodak Digital Science Photo CD Master Disk"

Now it plays fine as a Photo CD in one a Kodak CD/photo cd player which
we have in the stereo but it won't play in my DVD player at all despite the
player saying it can play JPEG photo CD.

So what's the difference?


 
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Anthony Horan
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      Sep 12th, 04, 9:48 AM
On Sun, 12 Sep 2004 13:26:07 +0930, Mostly Organised, Often Confused wrote:

> I got some photos put onto a photo CD a couple of years back and on the
> disk it's labelled as "Kodak Digital Science Photo CD Master Disk"
>
> Now it plays fine as a Photo CD in one a Kodak CD/photo cd player which
> we have in the stereo but it won't play in my DVD player at all despite the
> player saying it can play JPEG photo CD.
>
> So what's the difference?


Photo CD is a high-resolution custom format developed by Kodak, which
stores images in a special file format that has nothing in common with
JPEG.

If you want to view your PhotoCD pictures on a DVD player that can display
JPEGs, you'll need to convert the images on your PC and burn a new disc.
Photoshop and many other decent image-editing programs can open PhotoCD
files in any of the various resolutions available (each PhotoCD image file
contains a set of different-resolution versions of the same photo)


- Anthony
 
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      Sep 13th, 04, 4:37 AM
Anthony Horan wrote:

> On Sun, 12 Sep 2004 13:26:07 +0930, Mostly Organised, Often Confused wrote:
>
> > I got some photos put onto a photo CD a couple of years back and on the
> > disk it's labelled as "Kodak Digital Science Photo CD Master Disk"
> >
> > Now it plays fine as a Photo CD in one a Kodak CD/photo cd player which
> > we have in the stereo but it won't play in my DVD player at all despite the
> > player saying it can play JPEG photo CD.
> >
> > So what's the difference?

>
> Photo CD is a high-resolution custom format developed by Kodak, which
> stores images in a special file format that has nothing in common with
> JPEG.
>
> If you want to view your PhotoCD pictures on a DVD player that can display
> JPEGs, you'll need to convert the images on your PC and burn a new disc.
> Photoshop and many other decent image-editing programs can open PhotoCD
> files in any of the various resolutions available (each PhotoCD image file
> contains a set of different-resolution versions of the same photo)
>
> - Anthony





Ah thanks for that

I can play it fine in the Kodak player so I don't really miss out
just seems funny that they say my DVD player can play JPEG
Photo CD . Thank god for Nero



 
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Mostly Organised, Often Confused
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      Sep 13th, 04, 11:25 AM
Gadgets wrote:

> > my DVD player can play JPEG Photo CD

>
> Should be a comma in there JPEG, Photo CD... Kojak probably has Photo CD
> trademarked anyway.




More then likely

Thank goodness Nero can make a CD that is viewable, not that I am complaining
the other machine reads the photo cd's just the labelling is somewhat misleading if
you don't know the difference and I got caught out on this occasion. I converted
the CD of photos to JPEG files and all was well



 
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Anthony Horan
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      Sep 14th, 04, 6:03 AM
On Mon, 13 Sep 2004 13:07:18 +0930, Mostly Organised, Often Confused wrote:

> I can play it fine in the Kodak player so I don't really miss out
> just seems funny that they say my DVD player can play JPEG
> Photo CD . Thank god for Nero


Well, the confusion is really your DVD player manufacturer's fault, if they
refer to it as "JPEG photo CD". They may not realise that PhotoCD is a
specific, trademarked disc and file format owned solely by Kodak.

I doubt it's used much any more, as the megapixel resolution of pro
digicams now surpasses what PhotoCD is capable of (3072x2048 is PhotoCD's
maximum, though the "Pro" version of the format doubles that if you've got
the money to get one made!), but it was a damn handy format when I needed
to have some large-format transparencies scanned a few years ago...! You
can find out lots of detail about the format here:

http://www.kodak.com/go/photocd

And make your own PhotoCD discs here:

http://tedfelix.com/PhotoCD/PCDMakeYourOwn.html

Meanwhile, people often get PhotoCD confused with Kodak's other CD format,
which they ever-so-stupidly called PictureCD. This is the disc you get when
you specify the CD option when having your negatives processed at a Kodak
minilab. These have a resolution (from 35mm) of 1500x1000 and the scan
quality is lacklustre compared to PhotoCD. But the images on these, in the
PICTURES directory, are normal JPEGs. Some DVD players directly support
PictureCD (they'll have the logo on the front panel).


- Anthony
 
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