A Multimedia (MMC)/Secure Digital (SD) form-factor compliant card apparatus can include a mode determining circuit connected to first and second pins of the card apparatus and configured to determine a type of host connected to the first and second pins based on comparing voltages at the first and second pins to an internal voltage level. Related adaptors and methods are also disclosed.

 
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> Dynamic scene description emulation for playback of audio/visual streams on a scene description based playback system

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