Question about JVC Everio GZ-MG130 Camcorder

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Hi, I have a JVC Everio GZ-MG21U and I am trying to format an SD Card, but each time it says MEMORY CARD ERROR! I have tried 2 diff cards, a 16GB and a brand new out of package 4GB. Please advies

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JVC GZ-MG21U camcorder hardware does support maximum 2GB SD Card and more than 2GB memory card will not accepted by camcorder hardware.
Your 16GB and 4GB SD Cards are just fine but are not compatible with this particular camcorder and GZ-MG21U is also just fine and needs up to 2GB or less SD memory card.
It is just compatibility issue. Click JVC Support link to download user manual copy of GZ-MG21U and check page-67 of manual for memory card info.
Hope this info will help you.

Posted on Mar 27, 2011


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What does it mean when I get a message that says "please insert memory card" on my JVC Everio GZ-MG21U?

Make sure you're using an SD card, not a higher-capacity SDHC card. The GZ-MG21U works with SD cards, not with SDHC cards.

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Whats the largest sd card i can use.

The GZ-MG57 works with SD cards. Your 16GB card is actually an SDHC card. While it fits into the slot, it is electronically incompatible and will not work in devices not designed to work with SDHC cards. You need to stay with SD cards, 2GB and smaller.

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Manual for GZ-MG21U says any SanDisk would work with this camcorder but we got a SanDisk that says SDHC Card but when I insert it and click menu button nothing comes up.

Make sure that the card is not locked. There is a little switch that slides on the card to write protect information on it from accidental deletion. If the card is not locked, it may need to be formatted. I'm not sure if your particular camcorder has that ability or not. If not use a card reader on a computer to format it. It may be possible that your camcorder will not accept an SDHC card. It may only take a SD memory card. The HC stands for high capacity and it may not be compatible, so you may need an SD memory card not the SDHC one. I hope this helps and good luck!

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Hdd error on jvc gz-mg21u camcorder

first u connect to computer via usb then format it ( try to format with camera first) then preset ur camera by menu option then ur camera will be ok

Jun 26, 2009 | JVC Everio GZ-MG21 Camcorder

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SD Compatibility

nope. The largest it'll take is 2GB SDIO-compliant SD flash media. SDHC is right out of the window with this model.

Jun 07, 2009 | JVC Everio GZ-MG21 Camcorder

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Jvc everio GZ-MG21U

Transferring is just copying. What's confusing in that??

Nov 26, 2008 | JVC Everio GZ-MG21 Camcorder

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Error with CF card

did you delete all card files on your pc?
if so, camera will not function properly. Try formating the cf card on your computer and format it again inside JVC camera,
try inserting a normal cf card(should work) in order to find if you have a faulty cf card
hope it helps


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Try renaming the extenstion from .mod to .avi or .mpg

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