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In Reply to: Re: HDCD vs SACD vs DVD-audio summary? posted by tunenut on April 2, 2007 at 20:54:38:
Tunenut:"DVD-Audio has information that can be read on a regular DVD player."
The distinction is really immaterial. DVD is DVD. All content in the VIDEO_TS folder is DVD-V, and all content in the AUDIO_TS folder is DVD-A, and you can have one or both folders on a single DVD. DVD-V's have DVD-V only. DVD-A's have AUDIO_TS folder but may also have VIDEO_TS folder for video content.
"But the real high resolution content can only be read on a DVD-A capable player. A DVD-A player can play 2 channels with 192 kHz/24 bit, while a DVD-V player cannot."
DVD-V is actually good for up to 24/96 uncompressed which is really cool. It's a shame more companies didn't take advantage of this. DVD-A is a P.I.T.A.
"Similarly a DVD-A player can play six channels of 96/24, while a DVD-V player cannot."
True - if everything is not compressed. But DVD-V can handle multi-channel hi-res if they use Meridian Lossless Packing (MLP).
I think.
Follow Ups:
There is a fairly good article describing the differences between DVD-A and SACD in the online Wikipedia encyclopedia:http://en.wikipedia.org/wiki/DVD-A
I have a DVD recorder that I use for copying programs and movies from a satellite receiver. It is also capable of playing DVD-A discs.
I have also tried to record various XM radio stations from the satellite receiver. But, the bitrate of 32 or 64 kbps produces rather mediocre sound. Evidently they try to squeeze too many channels into a very narrow bandwidth.
I have tried to record standard FM radio on this recorder in what I presume is the DVD-V mode. The sound is much better, but I'm not sure if it is recording at 24/96 or higher. Does anyone know whether such a recorder can record in DVD-A.
Thanks
Barney
Presto,My understanding is that DVD-Video cannot handle MLP at all. I think MLP is a DVD-A only technology. Therefore, I am pretty sure that the DVD-Video spec does not allow 96 kHz for multichannel. Similarly, while DVD-V allows 96 kHz stereo, which is great (like the Classic Records DADs), it does not allow 192 kHz, which allegedly is even better.
Tunenut:Yeah - good point. MLP could very well be DVD-A only.
As far as 96khz versus 192khz goes? 192 *is* theoretically better, but I think (and this is my subjective opinion) that at 96khz and above, recording methodology and quality make more of a difference than the sampling rate by itself.
A perfectly recorded 192khz "crappy recording" is just perfect hi-res crap! lol
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