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Topic: Hybird SACD (Read 5271 times) previous topic - next topic
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Hybird SACD

Can PC DVDRW drives read the SACD layer?


Moderation: Moved to CD Hardware/Software.

Hybird SACD

Reply #1 –
No.

Hybird SACD

Reply #2 –
I believe that PC drives can typically read the CD-layer of a hybrid SACD.

The SACD-layer can only be read by special drives equipped with hardware-capabilty of reading a speciel part of the disc, and a special key that allows decrypting the content.

I think that SACD is just about the ony DRM-project ever to never be cracked - luckily it flopped big-style.

edit:
wikipedia is usually faster and better explained when it comes to such general matters.

http://en.wikipedia.org/wiki/Sacd

"the hybrid discs are designed to play on all standard Red Book CD players."

"Hybrid Super Audio CDs (which include both a Stereo CD and a Super Audio CD layer) can be played back on CD players. To hear the Super Audio CD Stereo, and on many discs the Super Audio CD Multichannel, layer requires a Super Audio CD player"

"Most portable CD players will play the conventional CD layer of a Hybrid SACD.
"
SACD includes various copy protection measures of which the most prominent is Pit Signal Processing (PSP), a physical watermarking feature that contains a digital watermark modulated in the width of pits on the disc (data is stored in the pit length). The optical pickup must contain special circuitry to read the PSP watermark, which is then compared to information on the disc to make sure it's legitimate. Because the majority of DVD players and all DVD-ROM drives use an optical pickup that lacks this specialized watermark detection circuitry they cannot read the data on the SACD layer of a protected SACD disc.[4]

On hybrid SACD discs, PSP is only applied to the SACD layer — not to the CD layer.


""
-k

Hybird SACD

Reply #3 –
Quote from: knutinh on
I believe that PC drives can typically read the CD-layer of a hybrid SACD.

The SACD-layer can only be read by special drives equipped with hardware-capabilty of reading a speciel part of the disc, and a special key that allows decrypting the content.

I think that SACD is just about the ony DRM-project ever to never be cracked - luckily it flopped big-style.

-k

Are there any drives for PC that can read these things? Any SACD PC drives?

Hybird SACD

Reply #4 –
I think the only non-SACD-specific player would be the PlayStation 3, otherwise an SACD hardware player would need to be purchased to playback the DSD stream.

Currently the only way to "duplicate" the audio is to capture the analog sound which is outputted from an SACD player, although apparently it may be possible to capture the DSD stream using IEEE 1394 digital outputs.

Arite.

Hybird SACD

Reply #5 –
Quote from: Arite on
Currently the only way to "duplicate" the audio is to capture the analog sound which is outputted from an SACD player, although apparently it may be possible to capture the DSD stream using IEEE 1394 digital outputs.

http://en.wikipedia.org/wiki/Sacd
"As of the 2.00 upgrade, PS3 is capable of SACD 5.1 playback via an optical cable. It achieves this by converting the audio to a 1.5mbps DTS format. The immediate revision after this removed the feature.[2])
"

"There seems to be one solution for obtaining digital non-DRM output on SACD as well as DVD-A players. A Switzerland-based company is offering a modified output-board that taps into the digital datastream prior to D/A conversion as well as converting DSD to PCM that the [[Spdif|S/PDIF]] port can transfer.
[http://www.dvdupgrades.ch/product/Modification/SPDIF/Output/Six_channel_S_P_DIF_output_board/24308.html]
"

-k

Hybird SACD

Reply #6 –
Quote from: knutinh on
I think that SACD is just about the ony DRM-project ever to never be cracked - luckily it flopped big-style.

Probably not many people think it is worth to be cracked   

Also the analog hole should be quite "large" for sound signals now, even using consumer equipment.

Hybird SACD

Reply #7 –
Quote from: HTS on
Are there any drives for PC that can read these things? Any SACD PC drives?



No and no.  Though I seem to recall talk at one point of Sony Vaio laptops that had SACD capability, but that turned out to be
*recording* capability, not playback of SACD discs!