Index: parsers.php
===================================================================
--- parsers.php	(revision 316385)
+++ parsers.php	(working copy)
@@ -42,7 +42,6 @@
 			echo '<p><strong>' . __( 'There was an error when reading this WXR file', 'wordpress-importer' ) . '</strong><br />';
 			echo __( 'Details are shown above. The importer will now try again with a different parser...', 'wordpress-importer' ) . '</p>';
 		}
-
 		// use regular expressions if nothing else available or this is bad XML
 		$parser = new WXR_Parser_Regex;
 		return $parser->parse( $file );
@@ -174,6 +173,15 @@
 			}
 
 			foreach ( $wp->comment as $comment ) {
+                                if(isset($comment->comment_meta)) {                                    
+                                    $comment_meta   =   array();
+                                    foreach ( $comment->comment_meta as $cmeta ) {                            
+                                        $comment_meta[] = array(
+                                                'key' => (string) $cmeta->c_meta_key,
+                                                'value' => (string) $cmeta->c_meta_value,
+                                        );
+                                    }                                
+                                }
 				$post['comments'][] = array(
 					'comment_id' => (int) $comment->comment_id,
 					'comment_author' => (string) $comment->comment_author,
@@ -187,6 +195,7 @@
 					'comment_type' => (string) $comment->comment_type,
 					'comment_parent' => (string) $comment->comment_parent,
 					'comment_user_id' => (int) $comment->comment_user_id,
+                                        'comment_meta' => $comment_meta
 				);
 			}
 
@@ -214,7 +223,7 @@
 		'wp:is_sticky', 'wp:term_id', 'wp:category_nicename', 'wp:category_parent', 'wp:cat_name', 'wp:category_description',
 		'wp:tag_slug', 'wp:tag_name', 'wp:tag_description', 'wp:term_taxonomy', 'wp:term_parent',
 		'wp:term_name', 'wp:term_description', 'wp:author_login', 'wp:author_email', 'wp:author_display_name',
-		'wp:author_first_name', 'wp:author_last_name',
+		'wp:author_first_name', 'wp:author_last_name','wp:comment_meta'
 	);
 	var $wp_sub_tags = array(
 		'wp:comment_id', 'wp:comment_author', 'wp:comment_author_email', 'wp:comment_author_url',
@@ -224,7 +233,7 @@
 
 	function parse( $file ) {
 		$this->is_wxr_file = $this->in_post = $this->cdata = $this->data = $this->sub_data = $this->in_tag = $this->in_sub_tag = false;
-		$this->authors = $this->posts = $this->term = $this->category = $this->tag = array();
+		$this->authors = $this->posts = $this->term = $this->category = $this->tag = $this->c_meta = array();
 
 		$xml = xml_parser_create( 'UTF-8' );
 		xml_parser_set_option( $xml, XML_OPTION_SKIP_WHITE, 1 );
@@ -312,6 +321,17 @@
 					$this->data['postmeta'][] = $this->sub_data;
 				$this->sub_data = false;
 				break;
+                        case 'wp:comment_meta':                                                                                             
+                                if ( ! empty( $this->sub_data ) &&  ! empty( $this->c_meta ) )
+					$this->sub_data['comment_meta'][] = $this->c_meta;                                 
+				$this->c_meta = false;				
+                                break;
+                        case 'wp:c_meta_key' : 
+                                $this->c_meta['key']    =   !empty($this->cdata) ? $this->cdata : false;                                
+                                break;
+                        case 'wp:c_meta_value' : 
+                                $this->c_meta['value']  =   !empty($this->cdata) ? $this->cdata : false;                                
+                                break;
 			case 'item':
 				$this->posts[] = $this->data;
 				$this->data = false;
@@ -534,6 +554,16 @@
 		$comments = $comments[1];
 		if ( $comments ) {
 			foreach ( $comments as $comment ) {
+                                preg_match_all( '|<wp:comment_meta>(.+?)</wp:comment_meta>|is', $comment, $commentmeta );
+                                $commentmeta = $commentmeta[1];
+                                if ( $commentmeta ) {
+                                        foreach ( $commentmeta as $c ) {                                                
+                                                $comment_meta[] = array(
+                                                        'key' => $this->get_tag( $c, 'wp:c_meta_key' ),
+                                                        'value' => $this->get_tag( $c, 'wp:c_meta_value' ),
+                                                );
+                                        }
+                                }                                
 				$post_comments[] = array(
 					'comment_id' => $this->get_tag( $comment, 'wp:comment_id' ),
 					'comment_author' => $this->get_tag( $comment, 'wp:comment_author' ),
@@ -546,6 +576,7 @@
 					'comment_approved' => $this->get_tag( $comment, 'wp:comment_approved' ),
 					'comment_type' => $this->get_tag( $comment, 'wp:comment_type' ),
 					'comment_parent' => $this->get_tag( $comment, 'wp:comment_parent' ),
+                                        'comment_meta'  =>  $comment_meta
 				);
 			}
 		}
Index: wordpress-importer.php
===================================================================
--- wordpress-importer.php	(revision 316385)
+++ wordpress-importer.php	(working copy)
@@ -574,19 +574,32 @@
 					$newcomments[$comment_id]['comment_approved']     = $comment['comment_approved'];
 					$newcomments[$comment_id]['comment_type']         = ! empty( $comment['comment_type'] ) ? $comment['comment_type'] : 'comment';
 					$newcomments[$comment_id]['comment_parent'] 	  = $comment['comment_parent'];
+                                       $newcomments[$comment_id]['comment_meta'] 	  = $comment['comment_meta'];
 				}
 				ksort( $newcomments );
                              
				foreach ( $newcomments as $key => $comment ) {                                        
 					// if this is a new post we can skip the comment_exists() check
 					if ( ! $post_exists || ! comment_exists( $comment['comment_author'], $comment['comment_date'] ) ) {
 						if ( isset( $inserted_comments[$comment['comment_parent']] ) )
 							$comment['comment_parent'] = $inserted_comments[$comment['comment_parent']];
 						$comment = wp_filter_comment( $comment );
 						$inserted_comments[$key] = wp_insert_comment( $comment );
+                                                // add/update comment meta
+                                                if ( isset( $comment['comment_meta'] ) ) {                                                        
+                                                        foreach ( $comment['comment_meta'] as $cmeta ) {                                                                
+                                                                $meta_key = apply_filters( 'import_comment_meta_key', $cmeta['key'] );
+                                                                if ( $meta_key ) {
+                                                                        // export gets meta straight from the DB so could have a serialized string
+                                                                        $value = maybe_unserialize( $cmeta['value'] );                                                                                                                                                
+                                                                        update_comment_meta($inserted_comments[$key], $meta_key, $value );
+                                                                        do_action( 'import_comment_meta', $inserted_comments[$key], $meta_key, $value );
+                                                                }
+                                                        }
+                                                }
 						$num_comments++;
 					}
-				}
+				}                         
 				unset( $newcomments, $inserted_comments, $post['comments'] );
 			}