Hold the presses! You say the client is requesting WMV and you have an Intel Mac? Why not install Parallels and encode the right way….in Windows? You will get the best possible encodes, have lots of flexibility and the client will be thrilled.
Is the client going to need full screen (640 x 480) size movies? Will they need streaming versions? Then the PC is the only way to go, and well worth the effort.
If you are talking about 480 x 360 or 320 x 240 low rez movies for reviews, then Flip4Mac is just fine. FWIW, I always encode 15 fps with Flip4Mac, and be sure to tell Flip4Mac that the input (source) is interlaced…..the default is progressive.
And although most of us bash cleaner, I happen to still use it as a pretty easy interface to make MPEG-1, and even Flash video. It is also a great transcoder for Quicktime movies and batches swimmingly. I do not use cleaner for WMV….eithe Flip4Mac on the low rez quick stuff, and the PC for an encode I want to be proud of.
I still loathe Macs compressor. That is not well written software.
Make a partition on the Mac and install Windows….the WMV encoder is a free download and is loaded. You won’t find a comparable WMV encoder on the Mac. That’s my 2