Apart from what Russ said, I would suggest taking it one line at a time. Go through the docs. For every piece of syntax of construct that you don't understand, research it (look in the Perl documentation, in your books, or ask here) until you do. Then proceed. Sometimes you can get a good general idea of what a piece of code does without really understanding the details, so take your time to dissect the code shown in the documentation and understand it thouroughly. You will learn a lot in the process, not only about your MP3 module, but about Perl programming in general.

--ZZamboni