diff --git a/apps/buffering.c b/apps/buffering.c
index 9dafa67..4d88ca0 100644
--- a/apps/buffering.c
+++ b/apps/buffering.c
@@ -45,7 +45,6 @@
 #include "status.h"
 #include "screens.h"
 #include "playlist.h"
-#include "playback.h"
 #include "pcmbuf.h"
 #include "buffer.h"
 #include "bmp.h"
diff --git a/apps/codecs.c b/apps/codecs.c
index 062487d..c8573fc 100644
--- a/apps/codecs.c
+++ b/apps/codecs.c
@@ -40,7 +40,6 @@
 #include "buffer.h"
 #include "buffering.h"
 #include "mp3_playback.h"
-#include "playback.h"
 #include "backlight.h"
 #include "ata.h"
 #include "talk.h"
diff --git a/apps/cuesheet.h b/apps/cuesheet.h
index d5a7504..e80b439 100644
--- a/apps/cuesheet.h
+++ b/apps/cuesheet.h
@@ -22,6 +22,8 @@
 
 #include <stdbool.h>
 #include "screens.h"
+#include "file.h"
+#include "id3.h"
 
 #define MAX_NAME 80    /* Max length of information strings */
 #define MAX_TRACKS 99  /* Max number of tracks in a cuesheet */
diff --git a/apps/metadata.h b/apps/metadata.h
index 00a1903..e7004ba 100644
--- a/apps/metadata.h
+++ b/apps/metadata.h
@@ -20,7 +20,9 @@
 #ifndef _METADATA_H
 #define _METADATA_H
 
-#include "playback.h"
+#include <stdbool.h>
+#include "config.h"
+#include "id3.h"
 
 unsigned int probe_file_format(const char *filename);
 bool get_metadata(struct mp3entry* id3, int fd, const char* trackname);
diff --git a/apps/playback.c b/apps/playback.c
index 222af76..a63e303 100644
--- a/apps/playback.c
+++ b/apps/playback.c
@@ -151,6 +151,14 @@
     STATE_FINISHED, /* all remaining tracks have been added */
 };
 
+#if MEM > 1
+#define MAX_TRACK       128
+#else
+#define MAX_TRACK       32
+#endif
+
+#define MAX_TRACK_MASK  (MAX_TRACK-1)
+
 /* As defined in plugins/lib/xxx2wav.h */
 #if MEM > 1
 #define MALLOC_BUFSIZE (512*1024)
diff --git a/apps/playback.h b/apps/playback.h
index cfb1509..103361c 100644
--- a/apps/playback.h
+++ b/apps/playback.h
@@ -21,20 +21,7 @@
 #define _PLAYBACK_H
 
 #include <stdbool.h>
-
-#include "id3.h"
-#include "mp3data.h"
-
-/* Not yet implemented. */
-#define CODEC_SET_AUDIOBUF_WATERMARK    4
-
-#if MEM > 1
-#define MAX_TRACK       128
-#else
-#define MAX_TRACK       32
-#endif
-
-#define MAX_TRACK_MASK  (MAX_TRACK-1)
+#include "config.h"
 
 /* Functions */
 const char *get_codec_filename(int cod_spec);