I need to output a wmv file to disc from a mac with premiere cs4. apparently there is no option to do so?
Should I use a PC in the first place? How do you deliver to clients that want wmv if you edit on a mac?

I use Sorenson Squeeze 5 Pro or Flip 4 Mac or (horror of horrors!) transfer a 720p QT file from Mac to my Windows box and put it in a Vegas timeline, then rended to WMV.

I use flip4mac

I use flip4mac

+1 here too

I also use Flip4Mac.

You can create presets and batch with Compressor & Flip4Mac.

Flip4mac for me too