Loading a sound twice causes error

Question

I am trying to load a sound in an mp3 player based on the selection of a user who
has the .swf embedded in a web page. The first time the user makes a selection
the selection loads with no problem. But if the user stops the sound or lets it play
to the end and starts it again, I have to be careful not to call sound.load(URLRequest)
again.
If the user has chosen another selection to listen to, then load() has to be called again.
The question is:
how do I unload the sound Obj so another mp3 file can be loaded into it and played?
I would think that load(another URLRequest) would overwrite the first and not complain.
( a deeper question is where is the sound file stored, by the browser -- in the case of
html embed-- or does the Flash plugin maintain its own cache?)
Thank you for time, attention, and advice, info, etc.
JK
PS: I realize that load() has more use than for sound objects

Answer 1

Thank you for the reply.
So, if there is a changeable play list length, I need to create new
objects for each
list item dynamically? And all the necessary objects cannot be hard
coded. The
name for each object has to be generated programmatically.
As it is programmed, my app has server code that opens and reads a play
list
directory and creates an html list of the contents. So managing the
content is
just a matter of adding or removing files from the play list directory.
This would mean that for every selection the user loads and plays, an
object will
persist. It would be nice to be able to unload selections to reduce the
memory
use. Or limit the size of each mp3 file, as well as the list length.
As it is the only way to load a new selection is to reload the browser
window.
That suggests that the browser cache holds the content of the object,
perhaps
as a parent of the Flash plugin or activeX control(?).
I am sorry this is long winded, but these nuances are obscure in
manuals and
texts.
JK