Re: netmd-dev digest, Vol 1 #260 - 3 msgs

David Biedenbach <[email protected]> writes:

>A-hah! That's why it didnt work ;)
>However, this result seems rather odd....
>all discs respond to
>00 18 06 02 20 18 01 00 00 30 00 08 00 ff 00 00 00 00 00
>with
>01 81 1b 00
>09 18 06 02 20 18 01 00 00 30 00 08 00 10 00 00
>08 00 00 00 06 00 08 00 02 80 01
>whether they are wchar only, normal only, or both wchar and normal.
>The implication here seems to be that all discs have normally encoded 
>titles whether they're used or not, but only certain discs have titles 
>with wchar encoding...

Yes, that was my understanding, that all the wchar titles are in UTOC
sector #4, more or less in parallel with normal titles in UTOC sector
#1. From http://www.minidisc.org/md_toc.html#utoc:

  The UTOC can be read and written by all MD recorders, and read by all
  MD players. It occupies several disc sectors, each 2336 bytes
  long. UTOC sector #0 describes the disc addresses of each track's
  audio information, sector #1 holds the characters in the track titles,
  and sector #2 holds track timestamp information. According to other
  documentation I've read, sector #3 contains the Barcode for the disc
  and ISRC for the music, and sector #4 contains Disk title, music
  titles and artist in ISO-8895-1 format.

I think I got this information from John Watkinson's "The Art of
Digital Audio" or maybe Pohlman's book on Digital Audio.

But just checking on the web, ISO-8895 seems like an 8-bit ASCII-like
encoding, so maybe this isn't right, or there's a typo somewhere.

Rick