podpress urls in custom fields

Hi

I want your script to check custom fields that contain text like this:

meta_key = _podPressMedia

a:1:{i:0;a:10:{s:3:”URI”;s:109:”http://localhost/mp3s/part-1of7.mp3″;s:5:”title”;s:41:”Mufti Menk – Social Conduct – Part 1 of 7″;s:4:”type”;s:9:”audio_mp3″;s:4:”size”;i:20851608;s:8:”duration”;s:5:”43:26″;s:12:”previewImage”;s:88:”http://localhost/mp3s/wp-content/plugins/podpress/images/vpreview_center.png”;s:10:”dimensionW”;i:0;s:10:”dimensionH”;i:0;s:3:”rss”;s:2:”on”;s:4:”atom”;s:2:”on”;}}

I tried just putting in ‘_podPressMedia’ in the fields section but it do not see counter going up.

https://wordpress.org/plugins/broken-link-checker/