DVD Audio

[Xylon]

I'm looking for guide how to burn my own DVD Audio disc. Needed software and etc


Thnx

[Baldrick]

http://www.sonic.com/products/dac/default.htm

probably costs a couple of thousand dollars...I don't know any tool for home users.

[Baldrick]

i found a cheaper software, gear dvd
http://www.gearsoftware.com/products/dvd/index1.cfm

it can only import and burn dvd audio though...so not that useful...

[housepig]

do a google search for Minnetonka Audio - they have some dvd-audio authoring software, I believe it's called DiscWelder Steel.

[FOO]

Where does the audio go ? In the AUDIO_TS ?
Can settop players play that ?

[Baldrick]

Where does the audio go ? In the AUDIO_TS ?
Can settop players play that ?

Yep, in the audio_ts folder.
Most don't. It must say that it supports dvd audio.

[Xylon]

Thank you Baldrick,

your post was verry useful

[andydd]

The Discwelder steel packagr costs $500 n the chrome version is $2000 +. You can get demos of both versions but they have no functionality at all which is a pity. But got get a copy n have a play around, it looks cool, hopefully one day ill have a working copy, as it looks remarkably easy to make your own DVD Audio discs.

Ive just ordered a Panasonic player that can play DVD Audio discs.

And to answer another question yes it builds a AUDIO TS folder with AOB files. Youll find that most commercial DVD Audios discs also have DVD Video content in the Video Ts folder, this is so the disc can be played in a normal DVD (Video) player, although you wont get the full benefit of uncompressed surround sound.

[bokica]

I found a way just few hours ago and the most important is - it cost $0.

NOTE: This works only with capacity up to 4.7Gb! (Sorry, I have only 3 DVD-Audio titles and I didnt succeed test any other that has larger capacity)

1. Open DVD-Decrypter
2. In "Mode" option choose "ISO" and than "Read"
3. After job is done in "ISO" choose "Write" and job is done!

[FOO]

That is profound. Good work .

[bokica]

i found a cheaper software, gear dvd
http://www.gearsoftware.com/products/dvd/index1.cfm

it can only import and burn dvd audio though...so not that useful...

GEAR DVD can provide you recording of DVD-Audio (unlike NERO f.e.), but you can not make your own DVD-Audio disc with it!

[Baldrick]

bokica=xylon???

Yes, I said that gear dvd only can import and burn..."so not that useful").

But did it really work to copy a dvd-audio?? Doesn't they have an own encryption??? It should work to copy but did it work fine to play on your dvdaudio equipment?

[bokica]

Unfortunately, I cannot give precise answer to this question since I don't have full equipment to check results (among other items I own Pioneer 454 instead of DVD-Audio capable player). So I can only listen audio in 5.1 format.

It sounds like original, it looks like original, it has same files like original...

[Baldrick]

Then you don't know if the dvd-audio works. Your pioneer 454 only plays the dvd-video audio.

[waheed]

As far as i know, DVD Audio uses a different type of encryption than that used for DVD Video. DVD Video uses CSS (content scambling system) while DVD Audio uses CSS 2 (the successor to CSS)

Im not too sure if Bokica's method of using DVD Decrypter to backup DVD Audio will work and that was designed for DVD Video content for CSS decryption. Nevertheless, i will try that method (will use DVD+RW disk so i can erase it if i dont succeed) and test it on my PC. (i have a soundblaster Audigy 2 soundcard which supports playback of DVD Audio)

Will post the results later.

[waheed]

I've used Bokica's method of using DVD Decrypter to backup a DVD Audio. The only DVD Audio disc i own is the sampler disc which came with my soundcard. I was able to back up the DVD Audio portion of the disc using DVD Decrypter with success (except that the DVD Audio disc i have is not encrypted) therefore do not know if it will work with encrypted DVD Audios.

I did some reserach and found out that DVD-Audio uses a different copy protection scheme. It's called CPPM (Content Protection for Pre-recorded Media) (not css 2 as mentioned in my previous post), and from what I've heard, it's a LOT tougher than CSS. Basically, CSS 2 was due to be used, but with the existance of DeCSS software, a more complex encryption was developed for DVD Audio.

FROM OTHER POSTS I HAVE READ: CPPM was developed as an improvement on CSS. Keys are stored in the lead-in area, but unlike CSS no title keys are placed in the sector headers. Each volume has a 56-bit album identifier, similar to a CSS disc key, stored in the control area. Each disc contains a media key block, stored in a file in the clear on the disc. The media key block data is logically ordered in rows and columns that are used during the authentication process to generate a decryption key from a specific set of player keys (device keys). As with CSS, the media key block can be updated to revoke the use of compromised player keys. If the device key is revoked, the media key block processing step will result in an invalid key value. The authentication mechanism is the same as for CSS, so no changes are required to existing drives. A disc may contain both CSS and CPPM content if it is a hybrid DVD-Video/DVD-Audio disc.

Another copy protection exists for DVD Audio known as CPRM (Content Protection for Recordable Media). DVD-A also contain watermarking protection.

Currently, no software exists that can decrypt DVD Audio discs. Maybe need to wait a while.