diff -r b99a156ae98f -r 12b5ca8deab5 mplayer.c
--- a/mplayer.c	Thu Feb 12 20:50:04 2009 +0800
+++ b/mplayer.c	Thu Feb 12 21:10:10 2009 +0800
@@ -393,6 +393,12 @@
           case kAudio:
                     player->KeyCmd("switch_audio");
                     break;
+          case kNext:
+                    player->KeyCmd("seek_chapter +1");
+                    break;
+          case kPrev:
+                    player->KeyCmd("seek_chapter -1");
+                    break;
           case k0:
           case k1:
           case k2: