System Parameter Register Memories List
Each DVD player operates internally via a group of system parameter registers (System
Parameter Register Memories, or SPRMs). The status of player operation (which DVD track
is playing, what language is being used, and so on) can be read by script commands that
access the SPRM status registers.
The following list describes the system parameters that can be read by a script:
• SPRM 0: Menu language description code; DVD player setup by user
• SPRM 1: Current audio stream number; set by user or program
• SPRM 2: Current subtitle stream number; set by user or program
• SPRM 3: Current angle number; set by user or program
• SPRM 4: Current playing title number (Title); set by DVD player
499
Chapter 20
Creating Scripts
• SPRM 5: Current Video Title Set (VTS) number; set by DVD player
• SPRM 6: Current title PGC number; set by DVD player
• SPRM 7: Current part of title number (chapter); set by DVD player
• SPRM 8: Current highlighted button number; set by viewer in DVD player
• SPRM 9: Navigation timer; set by program, then times out
• SPRM 10: Timer target; DVD track to play when SPRM 9 times out
• SPRM 11: Player audio mixing mode for Karaoke; set by program or DVD player setup
• SPRM 12: Country code for parental management
• SPRM 13: Parental management level in effect
• SPRM 14: Player video configuration (Aspect Ratio, Letterbox Mode)
• SPRM 15: Player audio configuration (DTS, AC-3, MPEG, PCM, SDDS)
• SPRM 16: Initial language code for audio, DVD player setup by user
• SPRM 17: Initial language code extension for audio
• SPRM 18: Initial language code for subtitle, DVD player setup by user
• SPRM 19: Initial language code extension for subtitle
• SPRM 20: Player region code
• SPRM 21: Reserved
• SPRM 22: Reserved
• SPRM 23: Reserved
These SPRMs provide all of the status information and control capability for the scripts.