Split big audio recording archive into separate files

I've not used it but this seems as though it might do the job.

www.nch.com.au/splitter/index.html

I tend to use Adobe Audition myself, and there's probably a way to do it in that, but I just use the old cut and paste method, which always seems to create gapless splits.

What I tend to do is create a .cue file with all of the track timestamps, load that into foobar2000, select all tracks and convert those to FLAC lvl 8 (or whatever codec needed), which splits it into multiple (gapless) files. There's multiple tutorials that can be found on creating .cue files and splitting using foobar2000, but if needed I can also give a more in depth explanation