Seeing as how 5.1 audio is part of what HD is about, this example falls way short.
The audio has nowt to do with HD, all "HD" is a buzzword for is the video side.
Besides, if you wanted to record in true 5.1, you'd need 5 microphones positioned around your target - not really practical methinks.
Not true in practice. Joe Public and the industry expect the complete package in much the same way as you wouldn't put 3in-wide wheels on a luxury car even though you could.
Very true regards the sounds.
A lot of the public are very naive regards HD - me included.
But then that doesnt help when you see 1080 i/p or 720 then some say true HD is that and others say it is this.
Maybe they ought to fix a standard definition to it like they did with USB (speed) ports and as it changes call it, HD1, HD1.1, HD1.2 eyc until there is a major upgragrade in performance/standards and then call it HD2. HD2.1 the .1 increments obviously being only for noticable changes.
Like USB 2 a massive speed change but still the same size/shape sockets/plugs, now USB 3 is arround, big speed jump, slightly differnt socket but I believe still backrds compatible.