I used http://www.flvto.com/ (http://www.flvto.com/) a couple of times, but it doesn't seem to work too well most of the time in my browser. So, are there any other reliable sites anyone knows of? Thanks!
(All the better if they happen to use lame – I know, still depends on the original recording)
http://www.downloadhelper.net (http://www.downloadhelper.net) (Firefox add-on)
Have been using it for a long time.
If you don't have Firefox, here are some websites that were still in my bookmarks:
http://max.subfighter.com/flv/downloader.php (http://max.subfighter.com/flv/downloader.php)
http://downthisvideo.com/ (http://downthisvideo.com/)
http://clipnabber.com/ (http://clipnabber.com/)
http://keepvid.com/ (http://keepvid.com/)
http://youtubeloader.com/ (http://youtubeloader.com/)
Don't know if they're still online and work.
If all else fails you could just use Fiddler and save the HTTP response body to disk and then afterwards just demux the audio stream with something like ffmpeg.