Hey rgarjr, if this is the sticky you are talking about, I have already gone through it and there is no mention of USB flash drive anywhere, only SD card related.
http://avic411.com/index.php?/topic/26312-confirmed-generic-divx-format-for-sd-avi-and-dvd-divx/
Is there another sticky that I am not aware of and that you are talking about?
Thank you