Google Reader Bundles

I've been able to create Google Reader Bundles, that I then get the Atom rss feed and put on Serviio. But serviio only likes it if rss shows the video link (e.g. cnet), other sources (such as CNN) did not work, I tried modifying the cnn.groovy script to make it work, but don't know how.

But this seems like a good way to organize feeds if this is possible.

Anybody knows how to change the existing scripts (for example, youtube.groovy, cnn.groovy) to work with a Google Reader Bundle feed?