I've created a Views 2 block to show new media on the site. In the block view, I've set it to display Flash node: Content. It works great in Safari, but not in Firefox.
Safari will display the 1pixel out player on mp3 files and I'm using JWplayer for FLV files. I can set the parameters width to 200 pixels and it scales the JWplayer just fine.
In Firefox, none of the players, even the generic player will show, in the block.

INTERESTING NOTE: I changed to the generic flash player that uses autostart, and the audio from the FLV file started playing when visiting the page in which the views block is displayed. So the file is being called, but the players are not being displayed. Again, this is in Firefox on the Mac.

I have not tested on Windows, because I'm am doing dev work using MAMP on the Mac. Do not have a dev windows machine as of yet.