I have just read all of that, and it was utterly pointless:
MD Data decks already exist and here is the very simple reason why:
ATRAC DATA IS DIGITAL
MiniDiscs simply store digital data
You can use the MiniDiscs themselves to store any kind of digital data you
like
You do NOT have to store the data using the ATRAC system !!
You do not need to 'encode' (and I use the term liberally and reluctantly)
data as an audio stream first !!
You simply need an MD-Data compatible deck (e.g Sony have a few)
----- Original Message -----
From: "Howard Chu" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, December 17, 2000 10:06 AM
Subject: MD: data onto audio MD, for the depraved
>
> OK, ATRAC is lossy and frequency-based. You cannot feed it linear data and
> expect it to come back exactly as it was before. It divides an input
sample
> into 512 spectral elements, which are themselves grouped into 52
> nonuniformly distributed bands. Frequencies within the same band are
> considered maskable by the center frequency of that band.
>
> If you really really really want to record data through ATRAC: Pick a
> sequence of frequencies, and consider them "bytes" or "words." Pick them
far
> enough away from each other (in frequency) so that they cannot mask each
> other.
[...]
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