How to Split Long Audio Tracks

Download and install Audacity.

From the LAME .zip file, extract only the file lame_enc.dll. Save it some place that's easy to find on your hard drive, such as the desktop. (When you export your files as MP3, Audacity will ask you to locate it.)

Open Audacity, go to File > Open, then select the audio file you wish to split from wherever it is stored on your hard drive.

Look to the upper-right corner of the window, ensure that the selection tool (it looks like an uppercase "I") button is highlighted.

Start at the very beginning of the audio file, click and drag the selector so that it highlights a selection of the file. You can use the keyboard arrows to zero in on "0" if necessary.

Use the cursor counter at the very bottom of the window to determine where in the elapsed time of the file you are, continue to highlight until you get to the point where you want to split (0:00:0 -- 30:00:0 for 30 minutes, for example; then 30:00:0 -- 60:00:0 for the next one, and so on).

Go to Edit. With the selection highlighted, go to Edit > Copy.

Select File > New.

Select Edit > Paste in the new window.

Select File > Export.

Choose a location to store your files--try making a folder with the book's or audio file's name--and then name the file. For example: "Chapter1," "Chapter2,” and so on. In the "Save as type" box, choose MP3.

Edit the ID3 tag. You will be given an option to edit the ID3 tags. It's not required, it's recommended that you do because it will help to keep things organized on the MP3 player. Title will be what you named the file in the previous step, Artist will be the author, and Album will be the book or audio file title . You will be asked to locate the LAME file from earlier. You need to do this only once.