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Thanks for sharing this, Eric. Which clarifies everything. So, it would seem that DTS HD, since it is a lossless system, meets the requirements for Pure Audio Blu-ray. These discs do sound excellent.

These are the only Pure Audio Blu-ray discs that I have which have only one program. The others have linear PCM in addition to DTS HD and/or Dolby. But, with 6 operas on each disc - around 11 hours of music each - I'm sure the discs are filled pretty close to capacity. DTS HD was probably necessary to fit that much on one disc at 192 kHz/24-bit with no room for any other formats. Linear PCM alone would probably have gone beyond the limit.

Best,
Gary


-----Original Message-----
From: Association for Recorded Sound Discussion List [mailto:[log in to unmask]] On Behalf Of Eric Nagamine
Sent: Saturday, December 09, 2017 1:22 AM
To: [log in to unmask]
Subject: Re: [ARSCLIST] Universal Mexico Decca Remasterings

According the Pureaudio standards group, looks like it does not have to have PCM.

http://pureaudiogroup.com/wp-content/uploads/2013/12/Pure-Audio-Blu-ray-specification-according-to-AES-21-ID.pdf

1. Audio formats
Pure Audio Blu-ray Discs can hold up to four audio streams. It is mandatory, that all audio in a Pure Audio Blu-ray will use either direct LPCM coding or at least one form of lossless compression. The main discriminating factor between streams will then be the channel format. One stereo stream is mandatory.
The audio resolution must be 96 kHz / 24 Bit and higher. In exceptional cases (like historical
recordings) 48 kHz / 24 Bit might be utilized.

--------------------------
Eric Nagamine

-----Original Message-----
From: Association for Recorded Sound Discussion List [mailto:[log in to unmask]] On Behalf Of Gary A. Galo
Sent: Friday, December 8, 2017 4:01 PM
To: [log in to unmask]
Subject: Re: [ARSCLIST] Universal Mexico Decca Remasterings

Hi Tim,

Now that I've got things set so 192 kHz audio is actually getting to my outboard DAC, I don’t think there's any loss of sound quality. If DTS is decoded properly by the player, all of the original data is restored without loss. What I question is calling these Pure Audio Blu-ray discs when they're not linear PCM. Again, I await an opinion from the Pure Audio folks. If they respond to my query, I'll post the response on the list. 

Best,
Gary



-----Original Message-----
From: Association for Recorded Sound Discussion List [mailto:[log in to unmask]] On Behalf Of Tim Gillett
Sent: Friday, December 08, 2017 8:32 PM
To: [log in to unmask]
Subject: Re: [ARSCLIST] Universal Mexico Decca Remasterings

Hi Gary,

I'm not sure which issues are most important  here.

Is it  false advertising, or the buyer being denied listening quality?

Regards
Tim

----- Original Message -----
From: "Gary A. Galo" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, December 09, 2017 8:41 AM
Subject: Re: [ARSCLIST] Universal Mexico Decca Remasterings


> The display on my Benchmark DAC3 HGC tells me the bit rate and sampling 
> rate.
>
> Gary
>
> ____________________________
>
> Gary Galo
> Audio Engineer Emeritus
> The Crane School of Music
> SUNY at Potsdam, NY 13676
>
> "Great art presupposes the alert mind of the educated listener."
> Arnold Schoenberg
>
> "A true artist doesn't want to be admired, he wants to be believed."
> Igor Markevitch
>
>
> -----Original Message-----
> From: Association for Recorded Sound Discussion List 
> [mailto:[log in to unmask]] On Behalf Of Eli Bildirici
> Sent: Friday, December 08, 2017 7:01 PM
> To: [log in to unmask]
> Subject: Re: [ARSCLIST] Universal Mexico Decca Remasterings
>
> Hmm. That sounds very strange. What exactly is telling you the bitrate and 
> samplerate of this content - the Oppos, your receiver, or something else?
> Could there be a weird firmware issue on the Oppos with these discs? Have 
> you tried other Pure Audio BDs on them to confirm?
> Could they have meant to make an additional release of this content at 
> 24/48 DTS-MA, and put the wrong 'pressing' in this package? Directly 
> advertising falsely in this manner is otherwise pretty egregious
>
> -------- Original Message --------
> From: "Gary A. Galo" <[log in to unmask]>
> Sent: Friday, December 8, 2017 06:04 PM
> To: [log in to unmask]
> Subject: Re: [ARSCLIST] Universal Mexico Decca Remasterings
>
>>
>> Hi Corey,
>>
>> The problem is that it specifically says, on the covers, that they're 
>> Pure Audio Blu-ray at 24-bit/192 kHz. Here's the link to the series on 
>> the Almaraz web site (they're the Mexican dealer that ships to the US):
>>
>> https://www.almarazrecords.com/collections/theanaloggoldenage
>>
>> Scroll down to the 5th row to find the Blu-ray discs. Discs that follow 
>> the Pure Audio specifications must be PCM, so they will play on any 
>> Blu-ray player. Those discs may also contain Dolby or DTS programs, but 
>> the Pure Audio portion is high-res PCM. If there really isn't any 
>> high-res PCM program on these discs, then calling them Pure Audio 24/192 
>> is false advertising. If transfer, restoration and editing is done at 
>> 192/24, and the finished product is converted to DTS HD at 48 kHz, a 
>> manufacturer can't call it Pure Audio Blu-ray. More info on the Pure 
>> Audio format can be found here:
>>
>> http://www.pureaudio-bluray.com/
>>
>> None of the color buttons, which Pure Audio uses to change formats, 
>> function on these discs, and the Audio format button on my Oppo remote 
>> controls only brings up "1/1 DTS HD" on my TV screen. The "1/1" means 1 
>> of 1 - there are no other choices.
>>
>> I've emailed the Pure Audio folks about this to see what they have to 
>> say.
>>
>> Best,
>> Gary
>>
>>
>> ____________________________
>>
>> Gary Galo
>> Audio Engineer Emeritus
>> The Crane School of Music
>> SUNY at Potsdam, NY 13676
>>
>> "Great art presupposes the alert mind of the educated listener."
>> Arnold Schoenberg
>>
>> "A true artist doesn't want to be admired, he wants to be believed."
>> Igor Markevitch
>>
>>
>> -----Original Message-----
>> From: Association for Recorded Sound Discussion List 
>> [mailto:[log in to unmask]] On Behalf Of Corey Bailey
>> Sent: Friday, December 08, 2017 5:13 PM
>> To: [log in to unmask]
>> Subject: Re: [ARSCLIST] Universal Mexico Decca Remasterings
>>
>> Hi Gary,
>>
>> I'm not surprised. 48K/24Bit is the film industry standard. As one who 
>> edited and mastered DVDs for a few of the major film studios, I can tell 
>> you that while the video was generally remastered to a Hi-Def format, the 
>> audio (at least, for the couple of hundred feature film titles and TV 
>> shows that I worked on) was re-purposed from Std. Def DVD files. I would 
>> expect that DVD-A is no different, weather it is mastered with DTS 
>> encoding or Dolby AC3.
>>
>> Regards,
>>
>> Corey
>>
>> Corey Bailey Audio Engineering
>> www.baileyzone.net
>>
>> On 12/8/2017 11:22 AM, Gary A. Galo wrote:
>> > Does anyone know anything about the Decca Analog Golden Era recordings 
>> > that are being issued by Universal Mexico? I just got the four Blu-ray 
>> > discs of the Del Monaco operas. Despite the claim that these are 
>> > PureAudio Blu-ray discs at 192 kHz/24-bit, the only program I can find 
>> > on my Oppo UDP-205 or my wife's BDP-93 is DTS HD at 48 kHz/24-bit. Have 
>> > you heard anything about these? I'm wondering if I am the only one who 
>> > noticed. The reviewers in Fanfare all seem to have only the CD versions 
>> > of these remasterings, not the Blu-rays.
>> >
>> > It seems very strange that these are coming out of Mexico only. The 
>> > booklets say that the actual tape-to digital transfers were done at 
>> > Abbey Road Studios, which I also find strange. I thought all the Decca 
>> > tapes were in Hanover.
>> >
>> > Based on sampling these last night, I will say that even at 48 kHz, the 
>> > sound is superb - better than anything Decca has issued here of this 
>> > material. Strangely, I have found a lot of the Decca Originals 
>> > remasterings to be very bright on top, including the Karajan Otello and 
>> > the Solti Salome and Elektra. Regarding Salome and Elektra, the Blu-ray 
>> > editions are just as bright as the two previous CD releases.
>> >
>> > Best,
>> > Gary
>> >
>> > ____________________________
>> >
>> > Gary Galo
>> > Audio Engineer Emeritus
>> > The Crane School of Music
>> > SUNY at Potsdam, NY 13676
>> >
>> > "Great art presupposes the alert mind of the educated listener."
>> > Arnold Schoenberg
>> >
>> > "A true artist doesn't want to be admired, he wants to be believed."
>> > Igor Markevitch
>>
> 


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