inject and unpack.exe quick question

[PrOLiNe]

What do I do with the tools, I know Unpack unpacks the WAV's but what does inject do? and CDI is Disc juggler right? I have not come across iso's like this yet

[Tyler187]

.cdi is discjuggler and it is the new method for dc burning.
unpack like you said unpacks the .wav and other sounds

inject well.....injects the .wav into the .cdi

the reason this is done is because extracting the .wav and compressing them seperaly makes the game alot smaller for downloading..