That is the nature of a Flash design. You aren't changing pages/files, just presentations within the same file, so leaving the MP3 presentation always present is a simple matter of making it so.
I know nothing of Flash Catalyst except that it is advertised as not involving writing code, so if it has the option to insert players without writing code =it might work. Flash Professional is definitely an option for creating a Flash site... when all else fails, Flash Professional is the mother of all derivatives.
This only works if your whole site is Flash. If not then you have to be trickier in your html coding.
I am producing and providing 3 site options. One is mere text and another is just HTML with STATIC IMAGES and no animation or funky flash stuff.
The third is purely being worked in Flash Pro and Flash Catalyst. Hence, I hope to cover all bases to keep users happy.
I am just finding my feet with Flash so I am having to tread carefully and slow which is why I am asking for advice.
Judging by the replies I can do this with the 2 Flash Applications which is great. I had planned to use Dreamweaver HTML merely to layout a Table to hold the Flash Files and produce all the Meta Data stuff. Considering that is all I will use, I believe the Answer is YES I can create such a design feature.
Or does that basic use of HTML in Dreamweaver mess it up ? I think it's worth spending the time to develop and design this to see if it works. If the principle is just to leave the media player in all states with Flash Cataylst then it will not be as tricky as I had thought. I may eat those words in a few weeks though : )
Thanks for all the replies