Magic gate pro slot not working

I bet you have a Sony VAIO laptop :D
Magic gate is the name of memory cards from Sony Corporation.
On your laptop magic gate written next to an opening means Sony corporation memory cards may be inserted in that .

you need to get one of the card readers :)

Some Sony Cybershot camera's have a small amount of memory built into the camera. Double check that the camera is set to put the pictures onto the memory stick.
If the camera is set up correctly, the memory stick may not be formatted correctly for your computer. If at all possible, connect the camera to your computer directly with the USB cable that should have come with it.

Hello

OK, the max memory support on this camera is 4GB.

Kind regards
Andrea

same problem here The driver is recognized but not opened

if its original it shuld work properly but if it isnt original then it will do some problem and always but original card but here the solution formate it but not through ur pc but the built in camera option it will help u out feel free to ask again thank u.

please Format ur Memory Stick

Your Magic gate is half size. You need an adapter that you put your magic card into which will bring it up to the standard SD size for your printer. You can find these at place's like Best Buy. Bring your magic card with you & make sure it fits before you leave the store. Click this link & you'll get the idea of what you need.
http://www.geeks.com/details.asp?InvtId=SDMSPDU-2048-A10M&cm_mmc=googleproducts-_-FlashMemory/CardReaders-_-MemoryStickPro/ProDuoCards-_-SDMSPDU-2048-A10M&ci_src=14110944&ci_sku=SDMSPDU-2048-A10M

Either the stick is defective or the wrong format.

Here is a link that appears to answer your question: http://www.pcworld.com/news/article/0,aid,114850,00.asp