[MEncoder-users] Expand a 16/9 video to 4/3 with black bars

[Grant]

I'm trying to use the expand filter to expand a 16/9 video to 4/3 by
creating black bars and maintain 320x240 resolution for my Nokia N82.

If I specify either 320:::::4/3 or 240:::::4/3 I get the right shape
with a 4/3 video window and black bars on the top and bottom on my
computer, but the resolution ends up being 428x320 and the Nokia
refuses to play it since its resolution is 320x240.  Does anyone know
how to do this?

- Grant