I just validated this page and most of the errors were for line 14, which is a
long line of code generated by Flash when I exported my .swf file.

http://www.bamboobali.com/music.shtml

Any thoughts on how to deal with this? Maybe Macromedia has a plug-in that
will help to generate more correct code? Is the HTML better in Flash MX?

FYI I am using Mac OS 9.2.1 and Flash 5.

It's an old issue, Flash can't really be embedded with full functionality and
be W3C compliant. It doesn't matter though, your page is correct and fine. I
would suggest however, that you don't really need Flash for your webpage. It
doesn't appear to really be doing anything that HTML couldn't do.