I was getting a "Call-time pass-by-reference has been deprecated" error in line 236 of the video_upload.module file.

The code looked like this:

 * Implementation of CCK's hook_field().
 */
function video_upload_field($op, $node, $field, &$items, $teaser, $page) {
  // Nothing different from FileField, so simply do what FileField does.
  $return = filefield_field($op, $node, $field, &$items, $teaser, $page);
  return $return;
}

I took out the ampersands (in front of $item) according to the comments in this article and everything seems to work fine:

http://drupal.org/node/508320

 * Implementation of CCK's hook_field().
 */
function video_upload_field($op, $node, $field, $items, $teaser, $page) {
  // Nothing different from FileField, so simply do what FileField does.
  $return = filefield_field($op, $node, $field, $items, $teaser, $page);
  return $return;
}

This might be helpful for someone else.