I have PE with external 4G micro SD card.

The thing is every time I need to copy files to this SD card from my PC, I need to take out the SD card and use SD reader so that it can be seen from my PC.

If I use USB cable to connect PE to my PC, I can see Removable Drive which is this SD card in PE but cannot access it, so unable to copy files directly. What I can see and access is eDGe directory (I guess this is internal storage).

Is that normal? or I need to set something to access SD card from USB cable?