[dvd::rip] obscure (to me) Transcode error on pass 2

[Clinton Winant <cwinant@xxxxxxxx>]

I am having trouble with transcode pass 2, the dvd::rip error message 
includes the folowing. Can anyone suggest what I need to do?

Thanks in advance

Clint

[mpeg4 @ 0xb51e62f0][lavc rc] Error: bitrate too low for this video with 
these parameters.
[export_ffmpeg.so] could not open FFMPEG codec
[transcode] warning : (encoder.c) video export module error: init failed
[transcode] critical: failed to init encoder
(decode_ac3.c) write failed
failed to write Y plane of frame(demuxer.c) write program stream packet: 
Broken pipe
Can't read pid from lock file /tmp/LCK..dvdRead failed for 44 blocks at 
2910231
Read failed for 44 blocks at 2910231

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