Thanks again Mike,
That link that you provided to How to Embed Video & Audio in an Email | eHow.com
is the one that I was following instructions from, but without success.
Thanks for all that code... that will test my limited knowledge of HTML code... I'm a Dreamweaver user and I know how to edit code based on table and cell begin and end tags and I can put together elements and edit tables and cells together, etc., but I'm not a code writer.
I take it that I insert my audio file link URL where the little music symbol is located in your code, and otherwise just paste that whole globe in to a Thunderbird email via Insert>HTML>Insert.
I will follow your link to find out how to post an audio file... thanks so much for that.
I'm not sure why the YouTube code doesn't work when I insert that in an email... I've seen how it works in a webpage when inserting embedded code for a video... when I send the test email to myself, nothing at all shows up in Thunderbird and one of those little blank image symbols shows up in WL Mail 2011 with a box around it, I guess representing where the video player should be.
I tested that YouTube video code from an ISP based email account and from my web mail account, both with the same "blank" results.
I don't have Dreamweaver on this machine where I'm working from now, but I think I saw a GNU open source Dreamweaver knock-off available out there somewhere, so maybe I'll resort to that for my little project if nothing else works.
Thanks allot again,