Index: apps/tagcache.c
===================================================================
--- apps/tagcache.c	(revision 15908)
+++ apps/tagcache.c	(working copy)
@@ -78,6 +78,7 @@
 #include "lang.h"
 #include "eeprom_settings.h"
 #endif
+#include "albumart.h"
 
 #ifdef __PCTOOL__
 #define yield() do { } while(0)
@@ -108,11 +109,12 @@
 
 /* Tags we want to get sorted (loaded to the tempbuf). */
 static const int sorted_tags[] = { tag_artist, tag_album, tag_genre, 
-    tag_composer, tag_comment, tag_albumartist, tag_grouping, tag_title };
+    tag_composer, tag_comment, tag_albumartist, tag_grouping, tag_cover, 
+    tag_title };
 
 /* Uniqued tags (we can use these tags with filters and conditional clauses). */
 static const int unique_tags[] = { tag_artist, tag_album, tag_genre, 
-    tag_composer, tag_comment, tag_albumartist, tag_grouping };
+    tag_composer, tag_comment, tag_albumartist, tag_grouping, tag_cover };
 
 /* Numeric tags (we can use these tags with conditional clauses). */
 static const int numeric_tags[] = { tag_year, tag_discnumber, tag_tracknumber, tag_length,
@@ -123,7 +125,8 @@
 
 /* String presentation of the tags defined in tagcache.h. Must be in correct order! */
 static const char *tags_str[] = { "artist", "album", "genre", "title", 
-    "filename", "composer", "comment", "albumartist", "grouping", "year", "discnumber", "tracknumber",
+    "filename", "composer", "comment", "albumartist", "grouping", "cover", 
+    "year", "discnumber", "tracknumber",
     "bitrate", "length", "playcount", "rating", "playtime", "lastplayed", "commitid" };
 
 /* Status information of the tagcache. */
@@ -188,7 +191,7 @@
 
 /* For the endianess correction */
 static const char *tagfile_entry_ec   = "ss";
-static const char *index_entry_ec     = "llllllllllllllllllll"; /* (1 + TAG_COUNT) * l */
+static const char *index_entry_ec     = "lllllllllllllllllllll"; /* (1 + TAG_COUNT) * l */
 static const char *tagcache_header_ec = "lll";
 static const char *master_header_ec   = "llllll";
 
@@ -1617,6 +1620,7 @@
     int path_length = strlen(path);
     bool has_albumartist;
     bool has_grouping;
+    char buf[MAX_PATH]="", *cover=buf;
 
     if (cachefd < 0)
         return ;
@@ -1654,7 +1658,7 @@
     if (fd < 0)
     {
         logf("open fail: %s", path);
-        return ;
+        return ; 
     }
 
     memset(&id3, 0, sizeof(struct mp3entry));
@@ -1663,6 +1667,8 @@
     ret = get_metadata(&id3, fd, path);
     close(fd);
 
+    search_albumart_files(&id3, ".100x100", cover, MAX_PATH);
+
     if (!ret)
         return ;
 
@@ -1736,6 +1742,7 @@
     {
         ADD_TAG(entry, tag_grouping, &id3.title);
     }
+    ADD_TAG(entry, tag_cover, &cover);
     entry.data_length = offset;
     
     /* Write the header */
@@ -1765,6 +1772,7 @@
     {
         write_item(id3.title);
     }
+    write_item(cover);
     total_entry_count++;    
 }
 
Index: apps/tagcache.h
===================================================================
--- apps/tagcache.h	(revision 15908)
+++ apps/tagcache.h	(working copy)
@@ -23,15 +23,16 @@
 #include "id3.h"
 
 enum tag_type { tag_artist = 0, tag_album, tag_genre, tag_title,
-    tag_filename, tag_composer, tag_comment, tag_albumartist, tag_grouping, tag_year, 
-    tag_discnumber, tag_tracknumber, tag_bitrate, tag_length, tag_playcount, tag_rating,
+    tag_filename, tag_composer, tag_comment, tag_albumartist, tag_grouping, 
+    tag_cover, tag_year, tag_discnumber, tag_tracknumber, tag_bitrate, 
+    tag_length, tag_playcount, tag_rating,
     tag_playtime, tag_lastplayed, tag_commitid,
     /* Virtual tags */
     tag_virt_length_min, tag_virt_length_sec,
     tag_virt_playtime_min, tag_virt_playtime_sec,
     tag_virt_entryage, tag_virt_autoscore };
 
-#define TAG_COUNT 19
+#define TAG_COUNT 20
 
 /* Maximum length of a single tag. */
 #define TAG_MAXLEN (MAX_PATH*2)
@@ -43,7 +44,7 @@
 #define IDX_BUF_DEPTH 64
 
 /* Tag Cache Header version 'TCHxx'. Increment when changing internal structures. */
-#define TAGCACHE_MAGIC  0x5443480b
+#define TAGCACHE_MAGIC  0x5443482b
 
 /* How much to allocate extra space for ramcache. */
 #define TAGCACHE_RESERVE 32768
Index: apps/tagnavi.config
===================================================================
--- apps/tagnavi.config	(revision 15908)
+++ apps/tagnavi.config	(working copy)
@@ -147,6 +147,14 @@
 "Album" -> title = "fmt_title" ? album = "#album#"
 "Composer" -> title = "fmt_title" ? composer = "#composer#"
 
+# Define the "cover" sub menu
+%menu_start "cover" "Cover by..."
+"Genre" -> genre -> cover -> title  = "fmt_title" 
+"Artist" -> artist -> cover -> title  = "fmt_title" 
+"Composer" -> composer -> cover -> title  = "fmt_title" 
+"Year" -> year -> cover -> title  = "fmt_title" 
+"All" -> cover -> title  = "fmt_title" 
+
 # Define the runtime sub menu
 %menu_start "runtime" "Play history"
 "Most played (Plays|Score)" -> title = "fmt_mostplayed" ? playcount > "0"
@@ -176,6 +184,7 @@
 "History..." ==> "runtime"
 "Same as current..." ==> "same"
 "Search..." ==> "search"
+"Cover by..." ==> "cover"
 "Custom view..."  ==> "custom"
 
 # And finally set main menu as our root menu
Index: apps/tagtree.c
===================================================================
--- apps/tagtree.c	(revision 15908)
+++ apps/tagtree.c	(working copy)
@@ -215,6 +215,7 @@
     MATCH(tag, buf, "albumartist", tag_albumartist);
     MATCH(tag, buf, "ensemble", tag_albumartist);
     MATCH(tag, buf, "grouping", tag_grouping);
+    MATCH(tag, buf, "cover", tag_cover);
     MATCH(tag, buf, "genre", tag_genre);
     MATCH(tag, buf, "length", tag_length);
     MATCH(tag, buf, "Lm", tag_virt_length_min);