Synopsis: embed for playmidi and play fail through Apache server State-Changed-From-To: open-feedback State-Changed-By: marc State-Changed-When: Fri Jul 10 12:16:25 PDT 1998 State-Changed-Why: Apache doesn't know or care or need to know or care anything about embed and it is almost impossible for this to be an Apache bug without it impacting other things.
The fact that navigator can load them directly from disk is irrelevant and has nothing to do with the issue; it is almost certainly a misconfiguration of Apache. Please check the docs for the syntax of AddType; commas are not treated as extension seperators. Please give the URL of a page on your server that doesn't work for you; it is almost certain that your MIME types aren't configured correctly so the proper MIME type isn't being returned.