uploading large files

I'm trying to upload 50mb files but am getting an error that the files are too big.
I changed the php.ini file too this:
upload_max_filesize = 100M
post_max_size = 200M

This change is reflected with phpinfo()

This is from my ckfinder configuration file:

$config['ResourceType'][] = Array(
      'name' => 'Files',            // Single quotes not allowed
      'url' => $baseUrl . 'files',
      'directory' => $baseDir . 'files',
      'maxSize' => "100M",
      'allowedExtensions' => '7z,aiff,asf,avi,bmp,csv,doc,docx,fla,flv,gif,gz,gzip,jpeg,jpg,mid,mov,mp3,mp4,mpc,mpeg,mpg,ods,odt,pdf,png,ppt,pptx,pxd,qt,ram,rar,rm,rmi,rmvb,rtf,sdc,sitd,swf,sxc,sxw,tar,tgz,tif,tiff,txt,vsd,wav,wma,wmv,xls,xlsx,zip',
      'deniedExtensions' => '');

$config['ResourceType'][] = Array(
      'name' => 'Images',
      'url' => $baseUrl . 'images',
      'directory' => $baseDir . 'images',
      'maxSize' => "100M",
      'allowedExtensions' => 'bmp,gif,jpeg,jpg,png,avi,iso,mp3',
      'deniedExtensions' => '');

$config['ResourceType'][] = Array(
      'name' => 'Flash',
      'url' => $baseUrl . 'flash',
      'directory' => $baseDir . 'flash',
      'maxSize' => 0,
      'allowedExtensions' => 'swf,flv',
      'deniedExtensions' => '');

How can I fix this?

Thanks E