How do you delete memory from memory card?

If you want to delete memory turn on the gamecube with your memory cards in there slots make sure there is no disc in the gamecube if there is hold down the A button to bring up the gamecube menu go...

Insert a game cartridge. Hold the start button and turn the game on. The memory card will come up and you can delete what you want.

Connect both memory cards to the computer, open both folders, and drag files between them.

It should allow you to copy from your PC to the card yes

Cameras use SD cards. If it is too small, they usually come with a slot adapter which you put in the card in. Then you put the adapter in an SD port, assuming your computer has an SD port. If it does...