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Gear / Technical Help => Recording Gear => Recording Media => Topic started by: JasonSobel on June 04, 2008, 09:23:53 PM

Title: are flash cards affected by magnets?
Post by: JasonSobel on June 04, 2008, 09:23:53 PM

I just bought a new little LED flashlight for the taping bag.  it's real small.  but I didn't notice that the back end of the light is magnetic.  it's actually supposed to be a little reading light, the idea being that you stick it to the wall, and then its got a few inches of flexy type material so you can point the light in any direction.

anyway, is it a concern at all to keep this little magnet in the taping bag?  I know hard drives can get erased or messed up in a magnetic field, but how about CF cards?  my thoughts are that it won't have any affect on the CF card, but I figured that I'd check here anyway.  And we're not talking about a major magnet here, I'm sure that if I kept the light/magnet on the opposite side of the taping bag, it'd be plenty far away anyway.

thanks.

Title: Re: are flash cards affected by magnets?
Post by: flintstone on June 06, 2008, 03:46:54 PM

"There's nothing magnetic in flash memory, so [a magnet] won't do anything," says Bill Frank, executive director of the CompactFlash Association. "A magnet powerful enough to disturb the electrons in flash would be powerful enough to suck the iron out of your blood cells," says Frank.

http://www.pcworld.com/article/id,116572-page,1/article.html

Title: Re: are flash cards affected by magnets?
Post by: JasonSobel on June 06, 2008, 03:53:28 PM

awesome!
thanks for the reply, and even better, its the reply I wanted to hear :)

Title: Re: are flash cards affected by magnets?
Post by: twatts (pants are so over-rated...) on June 06, 2008, 04:02:08 PM

Quote from: flintstone on June 06, 2008, 03:46:54 PM

"A magnet powerful enough to disturb the electrons in flash would be powerful enough to suck the iron out of your blood cells," says Frank.

Now that would be cool!

Terry

Title: Re: are flash cards affected by magnets?
Post by: Gutbucket on June 06, 2008, 04:05:09 PM

Recording in the MRI?

FWIW, They use those baby Stax electrostatic headphones for MRI experiments to get around the magnetics problem.