My 10 minute lightning talk about virt-builder is available to download now (video).
Since there are a few sound problems early on in the talk, I have also created a subtitles file: Advanced_disk_image_management_with_libguestfs.srt With VLC you can just drop this file into the same directory as the video file, and VLC will automatically display the subs. With other players you might need to load the subs separately.

