How to add markers or divide long audio files?

My subscription audio book service lets me burn CD’s. However, all the chapter markers are gone. My Language learning CD’s are great but I need to break down the tracks in to smaller pieces.

Is there an easy (hopefully free) software package that will easily mark the places I want to add marker or divide the file and press one button for processing later?

If I can add markers, I need something that would show me the chapters in WM5 media player or an other player one that would run on my pda.

I tried doing this process manually but am always interupted and end up recording the same track two or three times.

Thanks for the help.

Audacity probably has what you need - and it’s open source.