By default Maximum upload file size in WordPress is 32MB but you can very quickly increase it to 100MB in seconds. This tutorial is on new WordPress plugin called PBP Increase upload limit. The plugin is lightweight, takes about 2KB space but increases your file upload size to 100MB.
Installation & Usage: Install and activate PBP Increase upload limit plugin and that’s all.
OR Alternatively, you can add following hack in your theme’s function.php file:
add_filter( 'upload_size_limit', 'PBP_increase_upload' );
function PBP_increase_upload( $bytes )
return 104857600; // 100 megabytes