One of new and hidden feature in SharePoint 2013 is that you can specify the maximum upload size per file type 😉
Actually the default maximum upload is 250MB and you can modify it from central administration.
But, you can specify the this size as per file type using power shell cmdlet in MB.
$webApp = Get-SPWebApplication “http://sp2013:2000”
So I told SharePoint to allow uploading AVI files up to 500 MB.
And you can see all available file types in their sizes