[Vorbis] Indices and totals

[Mark Doll]

Hi all!

I've read http://reactor-core.org/ogg-tagging.html and 
http://www.vorbis.com/ot/20030303.html#id2726753 about the goals and 
non-goals of vorbis comments, but I'm still unsure:

1) Is it by purpose to forget about CDA's index feature because it's so 
rarely used or did nobody here ever thought about it?
-> Add an INDEXNUMER field?

2) If "Vorbis comments are the equivalent of a quick note scribbled on 
the bottom of a CDR", it would be nice to know the total number of items 
in a series to be shure to have all parts together (at least I note the 
total number of disks on the bottom of a CDR). So what about the 
conceptually same:
-> Add a TRACKTOTAL, DISKTOTAL and INDEXMAX (not INDEXTOTAL for 
disambiguation, since indeces count from zero in the red book standard)

3) Or would you consider it wiser reusing (abusing) existing standard 
vorbis fields and note the total number of disks/tracks/indeces inside 
the very same field like TRACKNUMBER=3/15 or would this break more 
things since apps expect a number in there? Or even stuff the indices in 
there too, like TRACKNUMBER=3/15.2/5? Or maybe also the disk number 
TRACKNUMBER=1/3-3/15.2/5?!

I personally dislike 3) and have currently coded it with seperate new 
fields. But since I'm free to change the application in any way I want, 
some guidance on this topic would be really appreciated!

Thanks in advance,

Mark.