Ooh, ooh, ooh, lemme answer.
You need to understand that there are two types of audio that a PS2 game may have.
1.) Sequenced audio.
- This type involves a set of sequence files (think MIDIs) and a set of sample banks (think soundfonts) - there is code in the game that basically tells which sequence to play back with which sample bank, and voila, music is born. (Final Fantasy X, X-2, XII, Kingdom Hearts 1, 2, the .hack series, and many, many more use this type of audio programming.
- There are a ton of custom drivers for sequenced PS2 music, but for general purpose, they are separated into two chunks - one being CSL (.bd .hd and .sq files) and the second being "everything else" - I can create PSF2 files out of the former, but the latter requires PS2 assembly knowledge in most cases, which I don't have.
2.) Streamed audio.
- This is the type you're hoping and praying for, because in the vast majority of cases, it's easily ripped. This is where most of my oddigy-style monolithic rips come from, because it's basically a little bit of futzing and two clicks, and out pours a huge chunk of audio. :) Streamed audio is the equivalent of .wav files, hanging out on a PS2 disc. They use a common codec (Compressed ADPCM) so Windows (maybe a Mac too) is already equipped to play it back. It just requires a little bit of information to tell the system how the file is supposed to be played back (...ok, getting confusing)
How do you tell?
Pop the game disc into your PC's optical drive. Note the filenames on the disc. Anything with BGM or MUSIC or SOUND in the title is a dead giveaway. The larger the file is that contains one of those magical strings, the more likely that it's streamed, and probably easily rippable (except if it's a Tri-Ace or EA game, thank you proprietary codecs, bleh.). If you see something like SQ.DAT that is maybe 2MB, the music is most likely sequenced.
In the event that the game data is either not visible on the disc except for a few few-KB files (thanks, Square Enix), or stored in one gigantic DATA.BIN (countless others), then some spelunking with a hex editor is needed, but I'm not going to go into that unless I have to.
I've never played Sly Cooper. I want to know what the filenames on the disc are. Here's how you can post them.
I hope you're running Windows. :)
Go to Start, Run
type cmd (hit enter - so it brings up a command (dos but not really) window)
type Z: (and hit enter - where Z is the letter of your optical drive that contains the PS2 game, probably D or E)
type dir /s *.* > c:\slycooperfiles.txt (and hit enter - where gamename is really whatever you want, just make it something you can find later)
Paste the contents of slycooperfiles.txt (now found in your C drive) here, or email them to me or something, and I will tell you how I think we should proceed.
Awaiting next command. :)