Can this plugin check an URL inside of a podpress meta field

We have a large number of podcast posts using podress.

The custom field that podpress uses is _podPressMedia

Here is a sample:

a:1:{i:0;a:10:{s:3:"URI";s:100:"http://localhost/test/audio/my_audio1.mp3";s:5:"title";s:0:"";s:4:"type";s:9:"audio_mp3";s:4:"size";i:10055261;s:8:"duration";s:5:"20:57";s:12:"previewImage";s:88:"http://www.siteurl.com/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 would like the plugin to just check the URL:
“http://localhost/test/audio/my_audio1.mp3”

Would this be possible ?

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