diff --git a/README.md b/README.md
index 944dfcb..2bc4a67 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,11 @@ For information on the ["cartridge list"](https://github.com/raz0red/js7800/wiki
 
 ## Change log
 
+### 08/10/23 (0.0.6)
+    - Updated palettes (contributed by Trebor @ AtariAge)
+    - YM-2151 default volume level adjustment
+    - Cartridge header fix for television type
+
 ### 07/30/23 (0.0.5)
     - Banksets support
     - Maria background color fix (Keystone Koppers)
diff --git a/site/deploy/roms/BlockemSockem.a78 b/site/deploy/roms/BlockemSockem.a78
new file mode 100644
index 0000000..4ddcc8c
Binary files /dev/null and b/site/deploy/roms/BlockemSockem.a78 differ
diff --git a/site/deploy/roms/romlist-homebrew-highscore.json b/site/deploy/roms/romlist-homebrew-highscore.json
index 2f5c414..9b99136 100644
--- a/site/deploy/roms/romlist-homebrew-highscore.json
+++ b/site/deploy/roms/romlist-homebrew-highscore.json
@@ -29,6 +29,10 @@
             "name": "Beef Drop",
             "path": "BeefDrop.a78"
         },
+        {
+            "name": "Block'Em Sock'Em",
+            "path": "BlockemSockem.a78"
+        },
         {
             "name": "Crazy Brix",
             "path": "CrazyBrix.a78"
diff --git a/site/deploy/roms/romlist-homebrew-released.json b/site/deploy/roms/romlist-homebrew-released.json
index 968191f..eee8723 100644
--- a/site/deploy/roms/romlist-homebrew-released.json
+++ b/site/deploy/roms/romlist-homebrew-released.json
@@ -45,6 +45,10 @@
             "name": "BlocDrop",
             "path": "BlocDrop.a78"
         },
+        {
+            "name": "Block'Em Sock'Em",
+            "path": "BlockemSockem.a78"
+        },
         {
             "name": "Crazy Brix",
             "path": "CrazyBrix.a78"
diff --git a/src/js/3rdparty/ym2151.js b/src/js/3rdparty/ym2151.js
index 538a40c..9eca034 100644
--- a/src/js/3rdparty/ym2151.js
+++ b/src/js/3rdparty/ym2151.js
@@ -1355,7 +1355,7 @@ var FM;
           this.MixSub(s, h)
         }
 
-        t[n++] = ((h[1] + h[3] + h[2] + h[3])/(2*128));
+        t[n++] = ((h[1] + h[3] + h[2] + h[3])/(2*128)) * .33; // RAZ: reduce volume
       }
     };
     i.prototype.Intr = function (t) { };
diff --git a/src/js/prosystem/Cartridge.js b/src/js/prosystem/Cartridge.js
index ac8bb49..a910ac4 100644
--- a/src/js/prosystem/Cartridge.js
+++ b/src/js/prosystem/Cartridge.js
@@ -303,7 +303,7 @@ function cartridge_ReadHeader(header) {
 
   cartridge_controller[0] = header[55];
   cartridge_controller[1] = header[56];
-  cartridge_region = header[57];
+  cartridge_region = header[57] & 0x1;
   cartridge_flags = 0;
   // banksets changes (check for 0x08, ym2151)
   cartridge_xm = (header[63] & 1) || ((header[53] & 0x08) == 0x08) ? true : false;
diff --git a/src/palettes/NTSC/JS7800_NTSC_257_Cool-DK.pal b/src/palettes/NTSC/JS7800_NTSC_257_Cool-DK.pal
index 130d0aa..e257b4a 100644
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diff --git a/src/palettes/NTSC/JS7800_NTSC_257_Cool-LT.pal b/src/palettes/NTSC/JS7800_NTSC_257_Cool-LT.pal
index 2e81ef9..5816022 100644
Binary files a/src/palettes/NTSC/JS7800_NTSC_257_Cool-LT.pal and b/src/palettes/NTSC/JS7800_NTSC_257_Cool-LT.pal differ
diff --git a/src/palettes/NTSC/JS7800_NTSC_267_Warm-DK.pal b/src/palettes/NTSC/JS7800_NTSC_267_Warm-DK.pal
index ffbdd7d..ff37a5c 100644
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diff --git a/src/palettes/NTSC/JS7800_NTSC_267_Warm-LT.pal b/src/palettes/NTSC/JS7800_NTSC_267_Warm-LT.pal
index ef6420a..f4bd6a7 100644
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diff --git a/src/palettes/NTSC/JS7800_NTSC_277_Hot-DK.pal b/src/palettes/NTSC/JS7800_NTSC_277_Hot-DK.pal
index 9aafbc3..a823df7 100644
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diff --git a/src/palettes/NTSC/JS7800_NTSC_277_Hot-LT.pal b/src/palettes/NTSC/JS7800_NTSC_277_Hot-LT.pal
index b0bf534..08ee7d4 100644
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diff --git a/src/palettes/PAL/JS7800_PAL_257_Cool-DK.pal b/src/palettes/PAL/JS7800_PAL_257_Cool-DK.pal
index a94a895..a63a146 100644
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diff --git a/src/palettes/PAL/JS7800_PAL_257_Cool-LT.pal b/src/palettes/PAL/JS7800_PAL_257_Cool-LT.pal
index b3b6d69..a72f642 100644
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diff --git a/src/palettes/PAL/JS7800_PAL_267_Warm-DK.pal b/src/palettes/PAL/JS7800_PAL_267_Warm-DK.pal
index 3510ccd..b1526a7 100644
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diff --git a/src/palettes/PAL/JS7800_PAL_267_Warm-LT.pal b/src/palettes/PAL/JS7800_PAL_267_Warm-LT.pal
index b11e50a..359c057 100644
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diff --git a/src/palettes/PAL/JS7800_PAL_277_Hot-DK.pal b/src/palettes/PAL/JS7800_PAL_277_Hot-DK.pal
index f501844..08f406d 100644
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diff --git a/src/palettes/PAL/JS7800_PAL_277_Hot-LT.pal b/src/palettes/PAL/JS7800_PAL_277_Hot-LT.pal
index e4e9622..314231f 100644
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