So i have a 8GB sd card, and it says i have 7.44 GB left after i formatted, is that suppose to say that ?
It might be.
I've had 4 different SD Cards total, & only one of them indicated the advertised capacity when it was new.
The latest SD CARD that I purchased, a 16GB-CLASS 10,only had about 14.7 GB of usable/total storage available,brand new,right out of the box.
Whether buying a more expensive,better known brand of card will get you more actual storage,I'm not sure.
I'd use a card reader & hook it up to your desktop/laptop & go on-line & search for something that may give you a more thorough explanation of what exactly is/may be remaining on your card.
My guess is there is a 500mb or so of a partition that isn't showing up.
Do you remember what that capacity of your card was when it was brand new?