Thoughts on audio, video, and blogging

Yesterday, Tim Bray wrote an interesting post about making movies and video's role in the future of blogging. Watch and listen (preferably with good headphones) to the movie in the post a few times. The world could use more things like this.

I noticed that Mark Pilgrim seems to think this is a bad thing because it's bandwidth intensive, not accessible, and doesn't work well with search engines. I agree that those are all problems. However, I don't think those are good enough reasons to keep people from doing new things with the web. I'm sure all three of them can be overcome.

For instance, the bandwidth problem could be solved by combining BitTorrent with browsers and news readers. I think this is going to have to happen even if the web continues to be text-based. People who host the most popular RSS feeds are having some serious bandwidth issues.

To address the accessibility and search engine issues, maybe someone could come up with a way to link each embedded audio and video object to a text file containing a transcript. It could mean a lot of extra work for the content producers. But the benefits would outweigh the cost. Of course, there's at least one big problem with doing this: people would inevitably figure out how to use this to manipulate search results.

Does anyone have thoughts? Are things already happening in this area?