Test scripts are ASCII text files containing calls to DDTT commands, global functions, and device-specific functions (the latter two are defined by grammar files). The following is a list of the CD-ROM-specific grammar functions:

• CDROM_OPEN
  
• CDROM_CLOSE
  
• CDROM_GETDEVPARAMS
  
• CDROM_QUERYDRIVELETTER
  
• CDROM_EJECT
  
• CDROM_LOCKDOOR
  
• CDROM_UNLOCKDOOR
  
• CDROM_QUERYAUDIODISKINFO
  
• CDROM_QUERYAUDIOSTATUS
  
• CDROM_QUERYDRIVERINFO
  
• CDROM_QUERYSECTORINFO
  
• CDROM_QUERYVOLUMESIZE
  
• CDROM_QUERYAUDIOTRACKINFO
  
• CDROM_QUERYSTATUS
  
• CDROM_QUERYUPC
  
• CDROM_QUERYCHANINFO
  
• CDROM_QUERYAUDIOCHANINFO
  
• CDROM_AUDIOCHANINFO
  
• CDROM_RESET
  
• CDROM_STOPAUDIO
  
• CDROM_RESUMEAUDIO
  
• CDROM_PLAYAUDIO
  
• CDROM_SEEK
  
• CDROM_DRIVELOCATION
  
• CDROM_READFILE
  
• CDROM_READ2048
  
• CDROM_READ2352
  
• CDROM_READPRE2352
  
• CDROM_CHECKSECTOR
  
• CDROM_CHECKRETURN
  
• CDROM_CHECKVALUE