Views 12 Likes Comments Comment
Like if this guide is helpful
Beware of sellers offering cheap SD cards.  If you buy one, TEST IT THOROUGHLY as soon  as you get it.  Why?  Here's a little tale...

On 23rd December 2009 I bought a pair of "16 GB SD Flash Memory Card **UK STOCK**" from eBay seller "tradedeals" (now trading as " eyelydelighted", his fourth eBay ID so far) to go with my SD-card based DVR.
They arrived, they seemed to work, I left feedback.  Then the problems started.
They worked at first, but once a few hours of recording had taken place they'd corrupt and I'd lose the lot.  OK, I put it down to speed, assuming the cards weren't fast enough, and left it at that.

Fast-forward to 21st July 2010 and I try recording some video on my Panasonic DMC-LX2, using the same cards.  Same thing happens.  In addition, copying files from my laptop to the card resulted in corrupt files as well.  So I snapped it in half, and was surprised at what was inside: a Samsung K9G8G08U0M memory chip.  Nothing unusual about that, you might think, finding a flash chip inside an SD card?  Well...


(Google the part number if you want to check yourself).

Yes folks, it's a 1GB card that thinks it's a 16GB card.  This means that as soon as you go over the 1GB mark everything goes loopy.  You can't even use it as a 1GB card because you can't format it as one.  It's useless.

If you've bought an SD card and want to test its true capacity, Google-search for "h2testw", this is a program that thoroughly tests cards and will report any anomalies.

While you're at it, search for "fake sd cards" and check out the link to Steve's Digicam Forums, there's a lot of useful information there, including example speed tests.

Have something to share? Create your own guide... Write a guide
Explore more guides