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Dave Platt
 
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Default DVD Emulates Audio CD?

In article ,
Moldy wrote:
Is it possible to burn audio tracks to a DVD+/-R in the same way as to
a CD-R. ie not creating DVD-Audio just CD-Audio utilising the greater
capacity (and NOT the extra mhz etc) which could then be read by my
DVD player (Pioneer NS-DV55 if at all relevant) as a normal Audio CD
is?

I have searched and searched the net and usenet and can find no
answers.


The basic answer is "No", to the best of my understanding. The cause
is the very different data structuring of the two media.

At a fairly low level, CDs are organized into small "frames" of
digital data, with synchronization and subcode and parity information
added to the 16-bit data samples. Higher-level structures (blocks and
tracks) are created by aggregating these frames together. Reliable
data storage (for e.g. CD-ROM style data) is "layered" on top of this
aggregation. There's a special "table of contents" area prior to the
beginning of the first track, where the track structure is described.

DVD media was designed from the get-to to behave a lot more like a
traditional data-storage medium. The data is organized on the disc
into 2048-byte blocks (rather than small audio frames), and there's no
special reserved "table of contents" area. Basically, a DVD disc just
looks like a computer filesystem (typically a UDF filesystem) which
stores data files. Audio data, etc. is stored in these files.

Due to the difference in data formatting, I don't think it'd ever be
possible to _exactly_ reproduce the structure of an audio CD on a DVD
disc. The closest you could come, probably, would be some sort of
filesystem with a bunch of .WAV files containing CD-quality/formatted
data.

--
Dave Platt AE6EO
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