Video Size is limited

I have put a video uploader on my site and it is set to limit videos at 62MB as below.  However, I can upload videos at any size except videos over 8 MB.  What is limiting the size of the video to be uploaded? Is it the server?


$type = explode('.',$_FILES["file"]["name"]);
echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
if ((( end($type) == "mpg")
|| (end($type) == "MPG")
|| (end($type) == "mpeg")
|| (end($type) == "MPEG")
|| (end($type) == "wmv")
|| (end($type) == "WMV"))
AND ($_FILES["file"]["size"] < 62000000))
  {
  if ($_FILES["file"]["error"] > 0)
    {
    echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
    }
  else
    {
  //  echo "Upload: " . $_FILES["file"]["name"] . "<br />";
  //  echo "Type: " . end($type) . "<br />";
  //  echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
  //  echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";

   
      $new_name = time().rand(1,9999999).".".end($type);
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "upload/" . $new_name);
     
      //echo "Stored in: " . "upload/" . $new_name;
       $inserted= "INSERT INTO `ajax_chat_video` (id, filename, title, career, student ) VALUES (
       NULL,
       '".$new_name."',
       '".$_POST[video_title]."',
       '".$_POST[video_career]."',
       '".$_SESSION[id]."'
        )";
      // echo $inserted;
       $just = explode('.',$new_name);
       $sql = @mysql_query($inserted);
       $location = "/home/front/www/chat/upload/";  
       //$location = "upload/";  
       $command = "/usr/local/bin/ffmpeg -i ".$location.$new_name." -deinterlace -ar 44100 -r 25 -qmin 7 -qmax 9 ".$location.$just[0].".flv";
      //     $ffmpeg = exec($command);

$last_line = system($command , $retval);
       
       //echo $last_line.'<br/><br/>'.$retval.'<br/><br/>'.$command.'<br/><br/>';
       
      // $command = "ls -lh";
      // echo exec($command);
       //$command = "ffmpeg -i ".$location.$new_name." -r 1  -t 00:00:10 -f image2 ".$location.$just[0].".png";;
       $command = "/usr/local/bin/ffmpeg -i ".$location.$new_name." -an -ss 00:00:03 -an -r 1 -vframes 1 -y ".$location.$just[0]."%d.jpg";
       $ffmpeg = exec($command);
       
           
       //echo '<br/>'.$command.'<br/>';
       //echo '<br/>'.$ffmpeg.'<br/>';
      echo "The file has been uploaded!";
      }
   
  }else{
  echo "Invalid file, please try again. Type: ".end($type)." | Size: ".$_FILES["file"]["size"];
  }


//echo 'OK OK OK OK OK OK OK OK OK OK ';


?>
</body>
</html>