I am ripping some books on CD to mp3 format. Each of the cd's has about 12-15 tracks, and they are all named 01,02,03... so when I rip them, I get 12-15 files per disc. I want to combine all of the tracks for disc 1 to a single mp3 file, disc 2 to a single file, etc.. so that I have 5 big files for a 5 disc book. Make sense? Can it be done? Thanks.