SPRM 16: Initial Language Code for Audio
This SPRM is the initial audio language that the viewer has set the DVD player to. It can
be assumed to be the primary spoken language that the viewer wants to hear.
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
for a complete table of all of these language values.
It is useful to know the setting of this SPRM when dealing with multiple-language projects.
By reading the value of SPRM 16, you can determine the spoken language that the viewer
wants to hear. If you have a project that has audio streams in more than one language,
you can play the appropriate spoken language that the viewer has selected. If the viewer
must choose a language from an audio menu, this SPRM value can be used to select the
appropriate button highlight.