I would imagine it's due to the space taken up by the formatting of the card.

Look out Silverware, you're coming to Kingsholm!

ok, is there anyway to use that space ? probably not but still is there a way ??

hi sohail,

the official sizing of memory cards works exactly the same way as with hard drives, as described here:

This has to do with the way nearly every harddrive manufacturer in existance calculates hard drive size. They all define 1 gigabyte = 1,000,000,000 bytes instead of the 1 gigabyte = 1,073,741,824 bytes which it *really* is.

This is called "binary" vs "decimal" sizes. If you look at the *fine print* you will always see "[Company X] defines 1 gigabite as 1 billion bytes". This is standard industry practice, unfortunately were a drive manufacturer (Western Digital for example) to be *honest* about this then their drives as advertised would all appear smaller than the competitors, when in fact they would not be. Shoppers would be comparing "apples to oranges" rather than "apples to apples".

Put another way in reality your hard drive is 6400 million bytes rather than 6400 megabytes. A 6.4 GB drive is actually closer to a 6 GB drive when viewed from a *real world* standpoint in terrms of how much space you have for storage purposes.

Now, we would love to break the mold here at MobyMemory and honestly describe all our memory cards as 122MB (for 128MB), 244MB ( for 256MB), etc up to 1Gb but actually, we believe this would mos likely confuse customers more than just following the industry convention like everybody else.

I hope that makes it clear for you. In other words, there is no way of recovering this missing space, as the true space afforded by every 256MB memory card on the planet is 244MB..

If you need more space, then you have to upgrade to a 512MB which will afford you 490MB of stroage space!!

Look out Silverware, you're coming to Kingsholm!