Sony Xperia Tablet Z SGP311 White Paper page 20

White paper | Xperia™ Tablet Z Wi-Fi
In reality, "sdcard" is a so-called symbolic link to "/data/media", but from inside an Android application, "/
sdcard" can still be used (for instance, use "sdcard/DCIM/100Android" to find all camera images).
Continuing to use /sdcard to access the content area ensures compatibility across different products and
Android releases in this regard.
18 March 2013