Android SD Card Characteristics on Samsung Galaxy

Question

My app requires that the use manually copy a file from their PC to the SD card in a subdirectory that my app creates there (or I will look for it in the root directory). So

Answer 1

To supplement Andy's answer. My findings with the Samsung Galaxy Tab have been that:

Environment.getExternalStorageDirectory() also returns the internal memory "/sdcard/". However unlike the Galaxy S, the actual SD card appears at "/sdcard/external_sd/".

When mounted with an 'external' SD card, I can report two extra drives appear in Windows, one for the internal and one for the external sd card.