http://gaming.nauglefest.net/dietmartyr/audio-rates.html
1 channel (mono) of
[email protected]=86.132KB per second (5.046MB per minute)
1 channel (mono) of 24-bit@48Khz=140.625KB per second (8.239MB per minute)
1 channel (mono) of 24-bit@96Khz=281.25KB per second (16.479MB per minute)
1 channel (mono) of 24-bit@192Khz=562.50KB per second (32.958MB per minute)
2 channels (stereo) of
[email protected]=172.264KB per second (10.093MB per minute)
2 channels (stereo) of 24-bit@48Khz=281.25KB per second (16.479MB per minute)
2 channels (stereo) of 24-bit@96Khz=562.50KB per second (32.958MB per minute)
2 channels (stereo) of 24-bit@192Khz=1.098MB per second (65.88MB per minute)
4 channels (quadraphonic) of
[email protected]=344.528KB per second (20.187MB per minute)
4 channels (quadraphonic) of 24-bit@48Khz=562.50KB per second (32.958MB per minute)
4 channels (quadraphonic) of 24-bit@96Khz=1.098MB per second (67.50MB per minute)
4 channels (quadraphonic) of 24-bit@192Khz=2.197MB per second (131.835MB per minute)
USB 2.0 is the most common and most compatible, why bother adding complications when USB 2.0 is more than enough. Even the 5D MKIII still has USB 2.0, why don't you shout at Canon for that?