'mp2input' as Lame Option in Mencoder

[das]

Hello Friends

How to pass '--mp2input', a standard 'lame' option, while compiling some 
AVI with 'mencoder'? 

I got a stream-dump from a DVD. This dump is playing OK, but, when I 
encoded it with '-oac mp3lame', the audio became noise. Then, I took an 
audio-dump of this stream-dump with 'mplayer', and it was a nice mpeg-II 
file, playing fine with 'mplayer' or any player. Lame can encode this 
audio-dump into MP3 with '--mp2input' as an option. But, when encoding 
with 'mencoder' I cannot pass this option into 'mencoder' in the 
standard '-lameopts' way. Is there any way to do it?

--
das