OK - it's not pretty, but here's a rough process for managing a Roku mrss through wordpress. Be sure to use the plugin referenced above to prevent the enclosure thing from forcing you into podcast mode.
Using the sample app provided in this thread, I set up each wordpress blog to be a category in the channel. Each blog post entry looks like this:
<media:content
url="http://bandofmusicians.com/1500_1501.mov"
fileSize="12216320"
type="video/quicktime"
medium="video"
isDefault="true"
expression="full"
bitrate="128"
framerate="25"
samplingrate="44.1"
channels="2"
duration="185"
height="200"
width="300"
lang="en" />
<media:title>The title from mrss </media:title>
<media:description>The only media description from mrss </media:description>
<media:thumbnail url="http://i.smartplanet.com/gallery/6260697-600-600.jpg" />
1. After publishing, get the source code from the feed.
2. Copy and paste the into an editor (I use notepad++).
Then perform the following edit steps:
3. Remove all occurences of
]]></content:encoded>
4. Remove all ] Brackets with replace
function.
5. Remove all [ Brackets with replace
function.
6. Remove all occurences of <!CDATA with
replace function.
7. Remove all occurences of
<content:encoded><p>
8. Remove all occurences of <br />
9. Remove all occurences of </p>
10. Remove all occurences of <p>
When the file is through these editing stages, save it to a url that matches an mrss entry in the config.opml file. This creates the bare minimum file. It could probably be embellished with embedded media, etc.
Would be nice if there was some kind of embedder could be available in wordpress for xml to prevent all this editing, but I could not find anything that worked.