"mplayer -vo dummy -identify" makes mplayer to actually play the audio stream instead of exiting after printing some info. Since the above command line is used extensively in any2dvd this blows up the execution time of any2dvd out of proportion.
The fix is simple. Just specify "mplayer -vo dummy -ao dummy -indentify" instead. Patch attached
Debian unstable with mplayer 1.0-rc1svn20070225-0.2