Android SD Card Characteristics on Samsung Galaxy
<p>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 far, so good (most people not having a problem except when they try to run my app while the phone is still connected and then ask why it tells them "SD card not mounted" :-) ).</p>

<p>Anyway, I'm wondering how the Samsung Galaxy phones work since my understanding is that they have an external AND internal SD card. My app currently calls "Environment.getExternalStorageDirectory()"; does this return the root of the EXTERNAL card?</p>

<p>Also, when the user mounts the device to their PC, what does it look like? Do they see two mounted drives, or only the external card as a drive, or something else? </p>
