I don't know if update notifications are sent out, but I've updated my proposal after some more in-depth documentation and code reading. It's still vague, but I'm getting the general idea, and the Media Kit really is fascinating. I'm still at a loss with the DVD libraries. There are several choices, among which are libdvdcss, which looks simple, but maybe too simple, and libdvdnav, which lacks documentation, but their website provides some good data on DVD format. Streaming looks deceptively straightforward; a matter of giving Media Kit the possibility to ignore the lack of file navigation support, though I'm not sure how to deal with the actual network part. As for code contributions, I posted some ideas on the Trac ( http://dev.haiku-os.org/ticket/1503#comment:2), and as I think I've found where to load volume on file load and store on file change, I'm currently experimenting with file attributes.