diff --git a/games/lemm/hgr_tables.s b/games/lemm/hgr_tables.s
index c201e699..0a13a02c 100644
--- a/games/lemm/hgr_tables.s
+++ b/games/lemm/hgr_tables.s
@@ -1,7 +1,12 @@
-div7_table	= $bc00
-mod7_table	= $bd00
-hposn_high	= $be00
-hposn_low	= $bf00
+;div7_table	= $bc00
+;mod7_table	= $bd00
+;hposn_high	= $be00
+;hposn_low	= $bf00
+
+div7_table	= $c00
+mod7_table	= $d00
+hposn_high	= $e00
+hposn_low	= $f00
 
 
 
diff --git a/games/lemm/lemm.s b/games/lemm/lemm.s
index 9c6513f0..63d905a4 100644
--- a/games/lemm/lemm.s
+++ b/games/lemm/lemm.s
@@ -160,6 +160,28 @@ mockingboard_notfound:
 
 skip_all_checks:
 
+	;==================================
+        ; load sound into the language card
+        ;       into $D000 set 1
+        ;==================================
+
+	; read/write RAM, use $d000 bank1
+	bit	$C083
+	bit	$C083
+
+	lda	#<letsgo
+	sta	getsrc_smc+1
+	lda	#>letsgo
+	sta	getsrc_smc+2
+
+	lda	#$D0    ; decompress to $D000
+
+	jsr	decompress_lzsa2_fast
+
+	; read/write RAM, use $d000 bank2
+	bit	$C08b
+	bit	$C08b
+
 
 	;==================================
         ; load music into the language card
@@ -169,8 +191,8 @@ skip_all_checks:
         ; switch in language card
         ; read/write RAM, $d000 bank 2
 
-	lda	$C083
-	lda	$C083
+	lda	$C08b
+	lda	$C08b
 
 
 	jsr	mockingboard_patch	; patch to work in slots other than 4?
@@ -322,11 +344,11 @@ config_string:
 
 
 .include "graphics/graphics_level1.inc"
-;.include "graphics/graphics_level5.inc"
+.include "graphics/graphics_level5.inc"
 .include "graphics/sprites.inc"
 
-level5_lzsa:
-level5_preview_lzsa:
+;level5_lzsa:
+;level5_preview_lzsa:
 
 music_parts_h:
 	.byte >lemm5_part1_lzsa,>lemm5_part2_lzsa,>lemm5_part3_lzsa
@@ -367,4 +389,4 @@ lemm6_part5_lzsa:
 .incbin "music/lemm6.part5.lzsa"
 
 letsgo:
-.incbin "sounds/letsgo.btc"
+.incbin "sounds/letsgo.btc.lz4"
diff --git a/games/lemm/letsgo.s b/games/lemm/letsgo.s
index 43727e58..70cffe3a 100644
--- a/games/lemm/letsgo.s
+++ b/games/lemm/letsgo.s
@@ -1,4 +1,4 @@
-
+LETSGO = $D000
 LETSGO_LENGTH = 14
 
 play_letsgo:
@@ -7,23 +7,27 @@ play_letsgo:
 	;beq     done_link_noise
 
 	; switch in language card
-	; read RAM, no write, $d000 bank 1
+	; read/write RAM $d000 bank 1
+
+	 bit     $C083
+	 bit     $C083
 
-	; bit     $C088
 
 	; call the btc player
 
-	lda	#<letsgo
+	lda	#<LETSGO
 	sta	BTC_L
-	lda	#>letsgo
+	lda	#>LETSGO
 	sta	BTC_H
 
 	ldx	#LETSGO_LENGTH           ; 14 pages long???
 	jsr	play_audio
 
-        ; restore rom, no write, $d000 bank 1
+        ; read/write RAM, $d000 bank 2
+
+	bit     $c08B
+	bit     $c08B
 
-;	bit     $c08A
 
 	rts
 
diff --git a/games/lemm/qboot.inc b/games/lemm/qboot.inc
new file mode 100644
index 00000000..65fbf7dd
--- /dev/null
+++ b/games/lemm/qboot.inc
@@ -0,0 +1,8 @@
+seek	=  $1126
+driveon  = $119D
+driveoff = $1122
+load_new = $11AB
+load_address=$11C4
+load_track=load_address+1
+load_sector=load_address+2
+load_length=load_address+3
diff --git a/games/lemm/qload.s b/games/lemm/qload.s
index 2ffe04c7..53d58b0c 100644
--- a/games/lemm/qload.s
+++ b/games/lemm/qload.s
@@ -217,7 +217,7 @@ sector_array:
 	.byte  0		; FIRST_SECTOR
 
 length_array:
-        .byte  92,159,157,145	; MIST_TITLE,MIST,MECHE,SELENA
+        .byte  96,159,157,145	; MIST_TITLE,MIST,MECHE,SELENA
 	.byte 128, 20,158,135	; OCTAGON,VIEWER,STONEY,CHANNEL
 	.byte  61, 31,159,109	; CABIN,DENTIST,ARBOR,NIBEL
 	.byte  20, 33, 27, 78	; SHIP,GENERATOR,D'NI,SUB
diff --git a/games/lemm/sounds/Makefile b/games/lemm/sounds/Makefile
new file mode 100644
index 00000000..b8f381f1
--- /dev/null
+++ b/games/lemm/sounds/Makefile
@@ -0,0 +1,6 @@
+LZSA = ~/research/lzsa/lzsa/lzsa
+
+all:	letsgo.btc.lz4
+
+letsgo.btc.lz4:	letsgo.btc
+	$(LZSA) -r -f2 letsgo.btc letsgo.btc.lz4