batch convert dv to avi xvid using ffmpeg

I am using Openindiana.

find bk/Video -type f -exec ~/mmpeg.sh {} \;

The mmpeg.sh script is based on sandipb script.
(Some variables may be unuseful).

https://github.com/alcir/mystuff/blob/master/mmpeg.sh

The converted files will go in /media/003-9VT166/converted/ directory using as name the full path starting from where find was launched.

So, the file
./bk/Video/2012_12/video01.dv
will become
/media/003-9VT166/converted/bk_Video_2012_12_video01.avi 

Please note: I had no time to handle spaces in file names.