StarDestroyer.Net BBS

If you can is there a specific program to use or can I use WMP to rip it?

There's no easy answer. It depends on the format, and whether the developers put any tricks to prevent your doing so. Not sure of the level of legality, so I'll mention the programs involved and you'll have to find them on your own.

Modified Sony ADPCM is easily rippable if it's in the open -- it's frequently used as the "default" audio format on the PS2, and is found in both media and sound effects. Most games for the PS2 use this for music, though some stick the files into large archives (like Rockstar) or hide the files in a nonstandard filesystem (like Square-Enix), or even encrypt the files (Kingdom Hearts II and Star Ocean 3). Just use a program like Cube Media Player or MFAudio to convert to WAV if it's in the open (such as Wild ARMs: Alter Code F). File extensions vary wildly, so you'll have to do some digging on your own (though if you're after video, it's almost always *.pss).

Some audio is also sequenced (think something like the old MOD or S3M formats). These contain a MIDI-like file and a set of instrument samples to go with them. The .hack//* games, Dragon Quest VIII, Final Fantasy XI, and Breath of Fire V are examples of games which use extensive sequencing. In cases like this, you can't easily rip at all without emulating the PS2's sound system and the game drivers (reverb and other presets are hardware-dependent, while sample handing is different for each game). There's been a great deal of success in doing this, but since each game has to be manually ripped (requiring more than average amounts of programming knowledge), you're at the mercy of ASM hackers as to what gets released (most do not look very highly upon begging and/or specific requests, and some games are harder than others). Look up Highly Experimental and the PSF2 file format if you want to find out more about this (along with preripped example sets).

Legality should be fine. The disk isn't copy-protected (though the actual system refused to play copied disks) that I am aware of and it's your legal copy. Consider it a backup.

The encrypted ones might be illegal to get though.

Of course, if ripping the files doesn't work, you can always pipe them into your line in and record a live feed. Might require a bit of an esoteric setup, but it can be done easily enough. (worst case scenario you need to buy one of these

Just record it as it comes in through the line in and use Lame to encode it to mp3

More time consuming I guess, so only worth it if you can't rip what you want, but it will work, and it's nice to know the option exists.

Thanks. The music I want ripped is from Mortal Kombat: Deception. I've unlocked all of the songs from the game but I would like to make a CD with just those songs.

Before going through the trouble, I recommend looking through the PSF section on http://www.zophar.net first.