Using a .sub file with Daemon?

[slowsteps]

Operating System: Windows Xp Professional Service Pack 2
Burning Software: Nero Express
Anti-virus Software: Norton Antivirus
DAEMON Tools Version: 3.46

I have a game which contains the .ccd .img and .sub files.
The game comes in a foreing languaje but since it comes with the file .sub, i think these are the subtitles of the game, how can i use them.

[CongoMan]

Operating System: WXPSP2
Burning Software: NERO
Anti-virus Software: ZONEALARM
DAEMON Tools Version: 3.47

SUB files are NOT SUBtitles, they represent the SUBchannel data of the CD, which has NOTHING to do with language issues.