I am in need of a utility to Consolidate old audio book files. I have audio books transcribed from cassettes, and WAV CD sets. The problem with them is they are broken up into 4 to 6 minute files and there several hindered of these short files. I need something I can use reduce the numbers down to manageable number, and something that will do this with MP3 files. What would be nice is to have something that converts them to something like Audible book files. Freeware or a good one I can purchase.