I already tried the following.
Using Winrar, 7Zip, and using Windows to detect the file suffix it did not do any justice.
I just need some sound effects from 50 of my PS2 games not music and subtitles to.

But having a problem extracting these files.
Thought I'd ask here since you users are experienced with this sort of thing.

many times needing custom extract program for game file. some using non-standard archive.