[mgp-users 01347] Problem running mgp with external programs like mpeg_play (on Mac OS X)

[Uwe Rempler <rempler@mechbau.uni-stuttgart.de>]

hi list,

i'm wondering if it is possible to call a program from within the 
presentation (on mac os x) like under linux with %system "mpeg_play 
test.mpg"...
mgp works fine with os x but i can't get external movie players like 
mpeg_play to work....
my test.mgp looks like:
-------------------------------------------------
%default 1 size 5, fore "darkblue"
%deffont "Standard" tfont "times.ttf"
%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
%pcache 1 1 0 0
%bimage "jpgs/1.jpg" 1024x768
.
%system "mpeg_play -controls off -dither gray \
 -end 1 -framerate 40 -position +200+250 \
 videos/posglevp/sand_h20.mpg"
[...]

i'm starting mgp (from terminal) with:
-------------------------------------------------
xinit /usr/X11R6/bin/xterm -exec /sw/bin/mgp test.mgp  -- -quartz

my system:
-------------------------------------------------
lovely little ibook g4 (really nice toy ;-) with mac ox x v10.3.5, 
xdarwin v1.3.0 (from fink), a self-compiled mpeg_play v2.4 and mgp 
v1.11a (don't think v1.11b would make any differences for my problem - i 
can live with the ctrl-flickering for now :-)

hopefully somebody's got a tip for me...
uwe