Video loads part way and freezes

Question

Our site is keeping an archive of 45 min videos and for some
reason they load for awhile and then the load bar jumps to the end
and the video will freeze at that point in the scroll bar. This
started with .flv files so we got a player that plays .mov and
.mp4, both of which do the same thing. This freezing problem isn't
always there and sometimes a video will play through.
Fixes I've tried:
- switch audio to 44100
- take off sound (this actually works, but i need sound)
- change files types
- switch servers
- make videos shorter
- make sure video is embeded
here's the link to the site
Video
Player
The current video that's doing this is the one named
"Messages" or any of the videos under the "What if" series.
If you happen to have seen an answer to this or have a
suggestion it would be a huge help. I've been working on this for
weeks. Thanks.

Answer 1

For anyone with the same problem, I've found what seems to be
working so far. Paste this into your .htaccess and it will keep
Apache from compressing your files. And be sure to add in the file
types you need.
# disables compression on gifs,jpegs,pngs,mp3s and flvs
# for the mod_deflate compression
<IfModule mod_deflate.c>
SetEnvIfNoCase Request_URI \
\.(?:gif|jpe?g|png|flv|mp3)$ no-gzip dont-vary
</IfModule>
# for mod_gzip - note; note totally sure about this one as i
don't use it
# however this should work.
<IfModule mod_gzip.c>
mod_gzip_item_exclude file \.gif $
mod_gzip_item_exclude file \.jpeg$
mod_gzip_item_exclude file \.jpg$
mod_gzip_item_exclude file \.png$
mod_gzip_item_exclude file \.flv$
mod_gzip_item_exclude file \.mp3$
</IfModule>
This is where i found the fix
FIX
LINK