Memory Stick showing as wrong size

[teulk]

My wife bought a new 4gb stick today, transfered some pictures onto it and then removed it. When she put it back in a few mins later a message appeared saying it had to be formatted before it could be used. She formatted it as requested and now it only shows as being 0.97mb in size now.
whats happened ?

 

[teulk]

When you format any removable device, it is possible to format it to a different capacity and make all other space unusable. Format it again, and in the window that pops up look for the capacity drop-down menu.

I will have another look, if i remember correctly tho there was nothing that showed 4gb, the top drop down only showed 1GB

 

[teulk]

Did you buy it from eb
If so, google Fake USB Stick.
Follow any one of the guide.s to see if it was a genuine 4gb stick.

No, i got it from a supermarket. I took it back and exchanged it.