Adding a YouTube Video via the Directory / Custompress Plugin

I’m trying to embed a YouTube video using a custom field. I’ve created the field and pasted in a YouTube URL. In the single-listing.php I’ve tried to add this line:

<?php echo do_shortcode('[embed]<?php echo do_shortcode('[ct id="ct_YouTube_Vi_text_d128" property="value"]'); ?>[/embed]'); ?>

That gives me a server error. Any thoughts?