Sd & Mmc

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  • stevo1210
    Badcaps Legend
    • Oct 2006
    • 4156
    • Australia
    #1

    Sd & Mmc

    I was an ass today and managed to plug an MMC card into the SD slot of my Toshiba P25 laptop.
    It didn't detect the MMC card at all. I didn't realise that I plugged in an MMC card at the time until I ejected it and looked at the card carefully. I was in a panic frenzy at the time because I thought I killed the SD slot of my laptop.
    I went and got an SD card out of my drawer and plugged it into the SD slot and it read fine, and wrote data fine as well.
    My friend who passed me the MMC card didn't bother to tell me it was an MMC card as he thought all SD slots read MMC cards as he plugs his MMC card into the SD slot of his PC at home. I decided to give it a try on my PC and plugged in the MMC card into the SD slot and I was stunned to see it actually read the MMC card.
    Now the MMC card and SD card are similar in shape, I think the MMC is a bit thinner though. It fitted in the slot and even locked itself in there like any SD card.
    Now this is one mistake I won't repeat. The SD slot still reads my SD cards fine so should I be worrying about the thing being shorted and ruined?
    I did not smell anything or see any smoke when I plugged the MMC card in and my laptop seems pretty normal as well.
    So can someone confirm if an MMC card is really compatible with an SD slot for sure?

    Thanks.
    Don't find love, let love find you. That's why its called falling in love, because you don't force yourself to fall, you just fall. - Anonymous
    Tags: None
    • PCBONEZ
      Grumpy Old Fart
      • Aug 2005
      • 10661
      • USA
      #2
      Re: Sd & Mmc

      """ the slightly thinner, pin-compatible MMCs can be used in almost any device that supports SD cards if the software/firmware on the devices support them. """

      http://en.wikipedia.org/wiki/MultiMediaCard
      Mann-Made Global Warming.
      - We should be more concerned about the Intellectual Climate.
      -
      Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
      - Dr Seuss
      -
      You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
      -

        Comment

        • Harvey
          Badcaps Veteran
          • Apr 2007
          • 264
          #3
          Re: Sd & Mmc

          Indeed - its unusual for a SD card slot not to work with a MMC card, as SD is a super set of the MC standard and is designed to be backwards compatible.

            Comment

            • Harvey
              Badcaps Veteran
              • Apr 2007
              • 264
              #4
              Re: Sd & Mmc

              ...or is that forwards compatible?

                Comment

                • PCBONEZ
                  Grumpy Old Fart
                  • Aug 2005
                  • 10661
                  • USA
                  #5
                  Re: Sd & Mmc

                  It depends on which way you are facing.
                  Mann-Made Global Warming.
                  - We should be more concerned about the Intellectual Climate.
                  -
                  Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                  - Dr Seuss
                  -
                  You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                  -

                    Comment

                    • zandrax
                      Hit and miss
                      • Dec 2007
                      • 1157
                      • Italy
                      #6
                      Re: Sd & Mmc

                      Try updating card reader's drivers.

                      Zandrax
                      Have an happy life.

                        Comment

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