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Added SD menu and Wii menu name
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{{Seealso|System Menu/BS2}}
{{Seealso|System Menu/BS2}}
−The '''System Menu''' is software shipped pre-installed into every Wii which allows the launching of games from an officially Nintendo certified game disc, launching of Nintendo Certified channels and Virtual Console and WiiWare titles.
+The '''System Menu''', more commonly known as the '''Wii Menu''', is software shipped pre-installed into every Wii which allows the launching of games from an officially Nintendo certified game disc, launching of Nintendo Certified channels and Virtual Console and WiiWare titles.
On the [[vWii]], the System Menu is an [https://wiiubrew.org/wiki/Ancast_Image Ancast Image], meaning it has a format bootable by the [https://wiiubrew.org/wiki/Espresso Espresso], being encrypted and signed. For this reason, it cannot be modified on the vWii.
On the [[vWii]], the System Menu is an [https://wiiubrew.org/wiki/Ancast_Image Ancast Image], meaning it has a format bootable by the [https://wiiubrew.org/wiki/Espresso Espresso], being encrypted and signed. For this reason, it cannot be modified on the vWii.
+
+== SD Card Menu ==
+With the [[4.0]] update, SD launching was added. Unfortunately, due to the limitations of how titles are loaded by [[IOS]], titles cannot be directly launched from the SD card. All titles have access to the SD slot, and only one processor can access the slot at a time, complicating this. Nintendo solved this by simply copying all channels to the [[Hardware/NAND|NAND]] at runtime, which is why unsigned channels cannot be run this way.
== Technical behavior ==
== Technical behavior ==