I did a podcast in 2004 with Adam Curry called Trade Secrets.
The website is archived here.
Originally it was at tradesecrets.com, a domain which I later gave away. The links to the MP3s on that site are broken.
However, I have a separate zip archive of the MP3s.
And an OPML file with descriptions of each of the episodes.
PS: It's somewhat demonstrative of the archiving problem to note that in 2008 I thought I had rescued these files once and for all, for all posterity, only to find that I remapped the podcatch.com domain, and in doing so broke all the links. This time it's all on scripting.com. That will be the last domain I decommission. But in a couple of years this stuff will probably all be gone, yet again.