Mitsuda owns the rights to his music.
He didn't write all of the music in Lime Odyssey though. Part of it was composed by
Studio EIM. You could download some tracks on the official website but Mitsuda's part was only 22 minutes. I guess there are more in the actual game, then.
As for the recording, I thought the main theme was quite... cavernous. It's some of the worst orchestra recording I've heard from Mitsuda.