does brand name CF card work better?

Discussion in 'Digital Cameras' started by peter, Sep 23, 2006.

  1. peter

    peter Guest

    just did a quick check on 4GB compact flash prices
    they range from $75 for an "ACP" brand to $170 "simpletech" brand.
    Is there any difference in terms of reliability, or are they all pretty much
    the same?
     
    peter, Sep 23, 2006
    #1
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  2. peter

    Marten Guest

    Marten, Sep 23, 2006
    #2
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  3. peter

    peter Guest

    peter, Sep 23, 2006
    #3
  4. peter

    Bill Crocker Guest

    First be aware there are only a handful of actual manufactures of CF cards,
    compared to all the various names they're sold under. So at times you may
    be paying a substantial premium price for the name that's on the card, and
    not that it's internals are any different, or better.

    While it is true that some cards have faster read/write speeds, depending on
    your camera it might not make a difference, or at least a difference you'll
    notice.

    As for reliability, I've never had a card failure, nor have I known anyone
    to have a failure. Keep in mind, CF memory cards do not have any internal
    moving parts to wear out.

    Bill Crocker
     
    Bill Crocker, Sep 23, 2006
    #4
  5. peter

    ASAAR Guest

    They don't actually wear out. In cameras that uses AA batteries,
    if they aren't designed to prevent inserting the batteries backwards
    it can create a voltage potential trying to move the positive holes
    instead of the negative electrons. It they move too far they clump
    together and like soap bubbles, can collapse against each other,
    forming super holes. CF cards can tolerate a few of these, but one
    of these super holes breaches the boundary between two of the card's
    data cells, you get something similar to a sensor's stuck pixel,
    resulting in a bit error memory failure. Reversing the batteries to
    their normal positions won't help. It's rumored that some cards
    have been cured by exposing them to the full power of a microwave
    oven for less than 3 seconds, but that's risky, as it usually
    damages more data cells than it cures.

    I hear that that technique is used by HP to burn in their new
    cameras that contain internal memory, supposedly to help weed out
    most of the early ones that would otherwise succumb to infant
    mortality within the two to four week period that most stores allow
    products to be returned. It's not especially good for the long term
    viability of the cameras, but if they manage to last at least as
    long as the typical one or two year warranty period, HP and other
    manufacturers feel that it can only help add to their bottom line.
     
    ASAAR, Sep 24, 2006
    #5
  6. peter

    Bill Crocker Guest

    To be fair, the IBM Microdrive is just that, an actual hard drive, so that's
    a whole new thread.

    I do recall various issues with CF cards in their early days, but I'm
    confident the technology has been perfected. You can encounter problems
    with cards that are not necessarily the fault of the card itself. Dirt in
    the edge connector can be a factor, even if it only affects one of the fifty
    pins! Faulty firmware, as you point out can also cause problems, as well as
    low batteries.

    I try to avoid removing the CF card from the camera as much as possible, so
    as not to wear out the pins, or socket. With USB2 data transfer speeds on
    newer cameras, there is not a big advantage in using card readers, even if
    they are Firewire.

    Bill Crocker
     
    Bill Crocker, Sep 24, 2006
    #6
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