If you are looking for an awesome, free program to edit your audio files, I suggest Audacity. It is a free open-source program for editing all types of audio, and is available for Windows and Linux. Long ago, I used to use Cool Edit 2000. I guess that program went out of style and the company was later bought out by Adobe to incorporate it into their new expensive program for the genre. If you want to get some simple tasks done easily, Audacity is the program to have. It has done everything that I need, such as cropping and fading of songs for my CDs. It is quite terrific. And best of all, totally free.