An example of how to tweak WordPress's RSS feed to prefix the title with the relevant post format ('Aside', 'Gallery', 'Video', etc.). Add to functions.php

Add post format to RSS entry title in WordPress 3.x

function add_post_format_to_title_rss( $title )
{
  $post_format = get_post_format();
  if( false === $post_format )
    return $title;
  else {
    $format_name = get_post_format_string($post_format);
    return "{$format_name}: {$title}";
  }
}

add_filter( 'the_title_rss', 'add_post_format_to_title_rss' );