Apple DVD Studio Pro 4 - Manual (Page 510)

As with SPRM 0, these values are derived from a two-letter code for each language spoken.
The code is derived from the lowercase ASCII value of each letter. See
Language Code
Table for a complete table of all of these language values.
SPRM 19: Initial Language Code Extension for Subpicture
Similar to SPRM 17, SPRM 19 is an extension code for more in-depth information about
the subtitle stream. It covers such areas as subpicture size or whether the subtitle stream
is for children.
SPRM 19 value Contents
0 Not specified
1 Captions with normal size
characters
2 Captions with larger size
characters
3 Captions for children
4 Reserved
5 Closed captions with normal size
characters
6 Closed captions with larger size
characters
7 Closed captions for children
8 Reserved
9 Forced captions
10 Reserved
11 Reserved
12 Reserved
13 Director’s commentary with
normal size characters
14 Director’s commentary with
larger size characters
15 Director’s commentary for
children
SPRM 20: Player Region Code
In order to have some control over which parts of the world can play a disc, a regional
coding system was developed. With this system, all standalone DVD players are
manufactured to support a single region, and DVD players used by computers have a
setting that configures the player’s region (with a limited number of changes allowed).
This SPRM returns the value of the DVD player’s region code.
510 Chapter 20 Creating Scripts