Originally Posted by MrSlacker
SD cards can be used for anything... i have no idea what is so secure in it
Let's say you're a music distributor and you want to sell your music in digital format in a SD card. Obviously, the RIAA and its various international clones will want you to lock down the content so the buyer can't just grab the files and share them on a P2P. So you use the SD's encryption system and the files can't be copied.
Someone who buys a blank SD card can put anything he wants on it, because he doesn't activate the encryption.
Yes, it's as stupid as it sounds. Who knows how much money was wasted to come up with this never-used encryption system just to satisfy the paranoia of the music cartels...