JPEG Photo CD - Kodak Photo CD Is There A Difference?

Discussion in 'Computing' started by Mostly Organised, Often Confused, Sep 12, 2004.

  1. 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?
     
    Mostly Organised, Often Confused, Sep 12, 2004
    #1
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  2. 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
     
    Anthony Horan, Sep 12, 2004
    #2
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  3. 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
     
    Mostly Organised, Often Confused, Sep 13, 2004
    #3


  4. 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
     
    Mostly Organised, Often Confused, Sep 13, 2004
    #4
  5. 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
     
    Anthony Horan, Sep 14, 2004
    #5
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