what i do is open all of the different wav files separately, then copy/paste them into one huge file in soundforge
i then do all of my editing, normalizing, etc... then i break out no more than 80 min of tracks into new wav files and then save them back to a new directory. i then use these files to CDWav them up.
at least with windows, you are limited to 2gb wav files, so you are unable to put them all back together to save the one 'mega' file