Solution to issue regarding uploading video/audio
Eric was a great in finding a solution to my problem. Thank you, Eric! Below is his resolution.
"There may be a problem with your php configuration in regards to the maximum file size, or possibly the server timeout.
You can check on these settings by creating a phpinfo page. This is a page that lists your servers settings for php. To create a page like this you just need to add this code to the top of any php page:
<?php phpinfo(); ?>
When you save the page and upload it to your server browse to it to see the info. In here you will want to check for the following settings:
By default these values are set to 2MB and 30 secs. If the file you are trying to upload is larger than this size or would take longer than the allowed time to upload then you will encounter a problem like you are experiencing.
To adjust the file size setting you will need to edit this in the php.ini file. If you do not have access to this or cannot edit the value then you will need to speak to your hosting provider to see if they can make this update for your or allow you to do it. For the execution time you can add in a php function on the page that will allow the script on the page to run for a longer time, here is what that function looks like:
<?php set_time_limit(<number of seconds to allow>); ?>
There is another test you can run on the upload to help determine if it the file type that is not allowed. If you can upload an very small mp3 file it would help to determine if the extension is part of the problem or the file size. I'm including a small sample mp3 that I found that you can use for this test, it is very small only about 65k.
Please run these tests to see what settings you have and if you can upload a small mp3 and let us know the result."