For videos, I have had success with teachertube.com

For audio, I store them on my own web site.

mhall4635019: For how long?

our school site, wiki pages, and cds for teachers

Not had an issue yet. Some have been there a couple years.

wow! Anybody use iTunes?

iTunes and gCast..

dkenney: Gcast has lots of storage available?

iTunes is blocked. It would be the easiest solution for sounds.

I use Podomatic and iTunes.