Simple play stop mp3 trouble

Question

I have very limted action script knowlege but I found this
http://www.tutorialized.com/view/tutorial/How-To-Create-A-Simple-Mp3-Player-In-Flash/34640 to
tutorial
and it seemed easy enough even though its an older version than
what I have (I have cs3)
To sum up the tutorial if you dont feel like clicking is he
steps you through 4 or 5 steps to build a simple start stop with a
few lines of action script. The first problem i run into is that
when I try to setup the linkage for the mp3 i get the following
error:
"A definition for this class could not be found in the
classpath, so one will be automatically generate in the SWF file
upon export"
I am able to bypass this by telling flash to create a new
class. I think this is where the problem is so what I have for the
class is northstar the base class is flash.media.Sound, i have the
checkmark on Export to Action Script and, export to first fram. The
debugger comes up when I start and I cant figure it out, here is
the action script:
"var my_sound:Sound = new Sound();
my_sound.attachSound("northshore");
play_btn.onRelease = function(){
my_sound.start();
stop_btn.onRelease = function(){
my_sound.stop();
I cant find any other tutorials so hopefully you guys can
help me out!
Thanks in advance.

Answer 1

the trouble here is that you must be using CS3 and have the
file set to AS3 - the code you have above is AS2. so you have a
couple of options - you can create a new document that uses AS2 and
use these codes, or use AS3 methods.
The only real difference is in the 'constructor' and
attachment methods - we no longer use this process in AS3 and
instead instantiate a new instance of the class. additionally, the
handlers for the buttons must also be constructed differently,
using the event handler model. so using AS3 it would be constructed
as follows: