Would you say the same if we just use 8 bits of info? And no, the mastering is not different always (they didn't remaster Gaucho for HD Tracks). One should wonder- Why, in the advent of digital audio way back when, did the recording engineers strive for superior resolution in their recordings? Why didn't they just forget everything and record in 8 bit audio? But in reality, using 20 bit masters was the first step for recording engineers, followed by 24 bit. According to your argument, this was all for nothing.
I wasn't talking about recording - there are obvious benefits to recording 24bit when you're recording individual tracks (namely again - noise floor).
However - after the combining and mastering is complete, there is absolutely no audible benefit using 24bit over 16bit for playback if:
- both originated from the same mastering
- both are volume matched
You are the one claiming an audible difference. So please provide proof. It's easy to do. Take your best 24bit source. Resample using Sox down to 16bit. Using Foobar2000's built-in abx tool (Foobar is free), abx the two tracks (after using replay gain to ensure the volume is matched). Make sure the blind test box is checked. Run 15 iterations (more if you want). Post the log.
All this takes is time. Everything else (all the software) is free. Please note - I'm not trying to be difficult, or put you down, or anything like that. As long as your resampling didn't introduce any audible artifacts, you really won't be able to tell the difference. The great thing about learning this for yourself is that then you can make informed choices buying your music.
HD Tracks currently holds 16/44.1, 24/96 and 24/192 releases of Amber Rubarth's latest binaural album. All appear to have come from the original master. The 16/44.1 is the cheapest, smallest file size, and yet is still lossless. Once you realise that you can't actually tell the difference via true blind test, you can then make an informed decision about future purchases. All I'm suggesting is rather than sticking to your guns that you can tell the difference, and making suggestions that anyone who can't has inferior ears/gear - actually do the test yourself.
I think you will be very surprised at the results.