Errors during usage

Plugin installs correctly and changes the default upload limit from 2mb to 100mb.

However, upon uploading large media files (34mb WAV, 20mb MP4), it produced two errors which failed to move the files:
HTTP error (in red, at the top status bar)
The uploaded file exceeds the upload_max_filesize directive in php.ini (in grey box, at the bottom status area)

This test was done on a top-of-the-line Media Temple Inc. grid server.

Instead, we used this edit in the base directory .htaccess, which worked:

php_value upload_max_filesize 64M
php_value post_max_size 64M
php_value max_execution_time 300
php_value max_input_time 300