Trying to use lame vbr instead of abr - no joy

[dock]

Can someone help me with this getting this devices.ini entry to work?

I'm trying to create a generic divx or xvid profile that uses lame vbr for audio instead of abr. This is a concert so sound is important, and I want to use the lame command line equivalent of -V 0 (highest quality VBR).

Not finding any documentation on this, I've been trying several random variations of -lameopts, such as:

mopts=-audio-preload 0.8 -delay 0.1 -lameopts vbr:br=%vbrate% 
followed by
VBRate=0

and

mopts=-audio-preload 0.8 -delay 0.1 -lameopts -V0

and

mopts=-audio-preload 0.8 -delay 0.1 -lameopts V0

but the correct syntax to do this is eluding me.

Can someone tell me the correct syntax to get the equivalent of Lame's -V0 option to work in the generic divx/xvid profile in devices.ini?

P.S. In case it helps, here's the relevant Lame syntax documenatation:

Variable Bit Rate (VBR)
-v             VBR
--vbr-old      use old variable bitrate (VBR) routine
--vbr-new      use new variable bitrate (VBR) routine (default)
-V n           VBR quality setting  (0=highest quality, 9=lowest)
-b  n          specify a minimum allowed bitrate (8,16,24,...,320)
-B  n          specify a maximum allowed bitrate (8,16,24,...,320)
-F             strictly enforce minimum bitrate
-t             disable VBR informational tag 
--nohist       disable display of VBR bitrate histogram

--abr n        specify average bitrate desired