I got bored at Uni so I decided to make an MP3 player. Not much new in this but you can see how to work with another listbox and also a movie player. There is an OpenDialog feature which is pretty useful. Enjoy.
Unfortunately the website I hosted my code on has vanished. However, my videos show all the source code. Watch them and pause to see the code.
REALbasic Lesson 12 – Creating an MP3 player