Thanks.
Eventually I've used the "signed" option, and create a keystore. That
did the trick.
BTW - This is a GREAT application. Works excellent with my backend
(haven't install MDD).
This is my modification:
I used this site to convert the recordings to MP4:
http://www.mythtv.org/wiki/Android_RSS_Video_Feed
But instead of using an RSS feed, I've added a "stream" button in the
recording details page of mythdroid.
The button works (open a media player with the link to the recording's
mp4), I still need to work on the converting (I can't get the audio to
work...).
Yair