This post was last updated on March 11, 2026
Added March 11, 2026: A reminder of the early days of podcasting.
I’ve been working on putting a podcast up for The Commons at work. Which is a little harder than it sounds. First I had to figure out podcast RSS feeds. Then there was an issue with the .m4a file that GarageBand saves podcasts as. .m4a is a newer MIME media type, which means it may not be in your the Apache mime types. At least it wasn’t for the library web server. And it might not hurt to add .m4v as well.
AddType video-x/mp4 .m4v
AddType audio-x/mp4 .m4a
MPEG 4 has various (and mostly interchangeable) file extensions, although .mp4 is the only official extension. But Apple has popularized .m4a and .m4v into what appear to be de facto standards.