How would I go about doing these two things?

1) "Track_01_Some_Song.mp3 (MP3)".

I'd like to substitute (MP3) with the word (PLAY) or a linked image. A bullet-point at the front of each track would also be nice.

2) I'd like for the Media Manager to ONLY display on pages that feature audio samples. As things stand, the box shows on every page; even those without audio samples. Of course I can set the background and border to match the color of the page (rendering it invisible), but I'd like to emphasize the Media Manager (with color and border) when it is present.

Any input would be appreciated.