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The S in SD stands for secure, and can be used for DRM purposes as well. Windows Phone 7 is the only one I know of that used it: https://web.archive.org/web/20

The S in SD stands for secure, and can be used for DRM purposes as well. Windows Phone 7 is the only one I know of that used it: https://web.archive.org/web/20110219215401/http://support.microsoft.com/kb/2450831 https://web.archive.org/web/20110219215401/http://support.mi... Once the SD card was bonded to your phone it was not reuseable elsewhere.

forty 2y ago
OP is about SSD, 2 Ss, so twice as secure ;)
- dmichulke 2y ago
  just like homo sapiens sapiens is ehhh ... nevermind
- baal80spam 2y ago
  Super Secure Drive
- BlueTemplar 2y ago
  Looks to be 2 Ds, so Super Duper Drive ?
- throw0101d 2y ago
  > OP is about SSD, 2 Ss, so twice as secure ;) Like applying ROT13 twice?
kurtoid 2y ago
Some Garmin Marine units use SD cards for map updates (Bluechart), which also seem to use the S in SD
garaetjjte 2y ago
>Once the SD card was bonded to your phone it was not reuseable elsewhere It password-protected the card (using CMD42). You can remove password while erasing the card, but most devices weren't aware of password protection feature at all. SD actually stands for "Super Density", optical disc format that was replaced by DVD but they already had the logo designed and apparently didn't want let it go to waste. https://www.global.toshiba/ww/news/corporate/1995/11/pr0701.html https://www.global.toshiba/ww/news/corporate/1995/11/pr0701....
- Marsymars 2y ago
  > It password-protected the card (using CMD42). You can remove password while erasing the card, but most devices weren't aware of password protection feature at all. You could actually use a Symbian device to bring the cards back to life!