Actually, I went through some of the sound files in the program, that were not used in the game.
And Planet M4-78 seems like it would be Korriban.
I say this, because the sound files from a droid talk about M4-78, and an accident in the industrial sector that killed the settlers (the sith). The droid's were programmed to prepare for settlers, and the sith arrived, and claimed they were the settlers.
And other sound files from Master Vash (she was supposed to be alive at one point I guess) talk about her master being skilled with computers, and programmed an accident in the industrial sector after they had been captured.
