You can do it with a editing program, but you can also do it manually when using CDR Win.
You then have to create a Cue-sheet (the *.cue file) where you write the time limits for each song.
You posted this question a few days ago as well.
Instead of posting the same question again (when you feel it is not answered), reply in your own topic and it will appear on top again...
This is not in accordance with the rules...and will be closed therefore.