Mac address filtering is security theatre
Mac address filtering is security theatre, mac addresses are easily spoofed and just make it harder to set-up new devices
2 publicly visible posts • joined 1 Feb 2012
You don't need ultra-high "resolution" better known as sampling rate, to capture the frequencies available to the human ear, see http://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampling_theorem
Also there are many music stores, eg 7Digital who run the Ubuntu one music store, that support FLAC audio, an open lossless audio format - a new format/device does not need to be developed: just submit patches if you think you can do a better job.