Can't create foldder structure on mini sd card

Hi

I recently purchaesd a new 4GB mini sd card for my curve 8900, my problem is that I create a file structure when my blackberry is connected to my pc and places the files in the relevant folders (music for example) then once I diconnect from my pc and open the music on my blackberry it lists all the music files I have on the card in no folder structure, this is really annoying when trying to find things.

Is there any way I can keep the folder structure on my blackberry?

Thanks

Matt

Use the Micro adapter for your computer. Alot easier and faster that way