diff --git a/hash/super80_cass.xml b/hash/super80_cass.xml
index df0fe77fbe6..efb096b49a9 100644
--- a/hash/super80_cass.xml
+++ b/hash/super80_cass.xml
@@ -15,7 +15,7 @@
 		<description>Horse Race</description>
 		<year>1981</year>
 		<publisher>Dick Smith Electronics</publisher>
-		<info name="serial" value="X-3607" />
+		<info name="serial" value="X-3607" /><!-- 012L1 -->
 		<info name="developer" value="George Georgiou"/>
 		<info name="usage" value="LOAD while in BASIC, then RUN" />
 		<part name="cass" interface="super80_cass">
@@ -28,7 +28,7 @@
 		<description>Dungeon Dilemma</description>
 		<year>1981</year>
 		<publisher>Dick Smith Electronics</publisher>
-		<info name="serial" value="X-3792" />
+		<info name="serial" value="X-3792" /><!-- 028L1 -->
 		<info name="developer" value="George Georgiou"/>
 		<info name="usage" value="LOAD while in BASIC, then RUN" />
 		<part name="cass" interface="super80_cass">
@@ -41,7 +41,7 @@
 		<description>Tape Basic</description>
 		<year>1981</year>
 		<publisher>Dick Smith Electronics</publisher>
-		<info name="serial" value="K-3602" />
+		<info name="serial" value="K-3602" /><!-- 421 -->
 		<info name="usage" value="L to load, G100 to run" />
 		<part name="cass" interface="super80_cass">
 			<dataarea name="cass" size="32782636">
@@ -53,7 +53,7 @@
 		<description>Editor Assembler</description>
 		<year>1981</year>
 		<publisher>Dick Smith Electronics</publisher>
-		<info name="serial" value="X-3791" />
+		<info name="serial" value="X-3791" /><!-- 437L1 -->
 		<info name="usage" value="0xF0 must be nonzero, L to load, G8000 to run" />
 		<part name="cass" interface="super80_cass">
 			<dataarea name="cass" size="23330502">
@@ -65,7 +65,7 @@
 		<description>Debugger</description>
 		<year>1981</year>
 		<publisher>Dick Smith Electronics</publisher>
-		<info name="serial" value="X-3790" />
+		<info name="serial" value="X-3790" /><!-- 438L1 -->
 		<info name="usage" value="0xF0 must be nonzero, L to load, G100 to run" />
 		<part name="cass" interface="super80_cass">
 			<dataarea name="cass" size="13885816">
@@ -82,6 +82,7 @@
 		<description>El Draw 3.6.3</description>
 		<year>1981</year>
 		<publisher>El Graphix</publisher>
+		<info name="serial" value="402" />
 		<info name="usage" value="super80e only. L to load, G100 to run" />
 		<part name="cass" interface="super80_cass">
 			<dataarea name="cass" size="17319458">
@@ -93,6 +94,7 @@
 		<description>Mini Typewriter</description>
 		<year>1981</year>
 		<publisher>Bemak</publisher>
+		<info name="serial" value="417" />
 		<info name="usage" value="L to load, G8000 to run" />
 		<part name="cass" interface="super80_cass">
 			<dataarea name="cass" size="5294908">
@@ -104,6 +106,7 @@
 		<description>Missile Attack</description>
 		<year>1981</year>
 		<publisher>Matrix Software</publisher>
+		<info name="serial" value="013L2" />
 		<info name="developer" value="George Georgiou"/>
 		<info name="usage" value="super80d only. LOAD while in BASIC, then RUN" />
 		<part name="cass" interface="super80_cass">
@@ -116,6 +119,7 @@
 		<description>Pelatronics Editor Assembler</description>
 		<year>1981</year>
 		<publisher>Pelatronics</publisher>
+		<info name="serial" value="427" />
 		<info name="usage" value="L to load, G100 to run" />
 		<part name="cass" interface="super80_cass">
 			<dataarea name="cass" size="27629118">
@@ -123,21 +127,11 @@
 			</dataarea>
 		</part>
 	</software>
-	<software name="vonshrin">
-		<description>Von Shrink</description>
-		<year>1981</year>
-		<publisher>unknown</publisher>
-		<info name="usage" value="LOAD while in BASIC, then RUN. SHUT to quit." />
-		<part name="cass" interface="super80_cass">
-			<dataarea name="cass" size="23345086">
-				<rom name="vonshrink.wav" size="23345086" crc="090605cd" sha1="b55a73bc403f3da3e5aaff33d06b4b37882a60ac" offset="0" />
-			</dataarea>
-		</part>
-	</software>
 	<software name="zipzap">
 		<description>Zip Zap</description>
 		<year>1981</year>
 		<publisher>Bemak</publisher>
+		<info name="serial" value="403" />
 		<info name="usage" value="super80d only. L to load, G100 to run" />
 		<part name="cass" interface="super80_cass">
 			<dataarea name="cass" size="15616026">
@@ -145,4 +139,100 @@
 			</dataarea>
 		</part>
 	</software>
+<!--
+     Various homebrew programs for use with super80, super80d and super80e, recorded at 300 baud.
+     Some is ok, some is junk.
+ -->
+	<software name="vonshrin">
+		<description>Von Shrink</description>
+		<year>1981</year>
+		<publisher>unknown</publisher>
+		<info name="serial" value="074L1" />
+		<info name="usage" value="LOAD while in BASIC, then RUN. SHUT to quit." />
+		<part name="cass" interface="super80_cass">
+			<dataarea name="cass" size="23345086">
+				<rom name="vonshrink.wav" size="23345086" crc="090605cd" sha1="b55a73bc403f3da3e5aaff33d06b4b37882a60ac" offset="0" />
+			</dataarea>
+		</part>
+	</software>
+<!--
+     Various homebrew programs for use with super80m, recorded at 600 baud.
+     Most of these have been partially rewritten by myself to take advantage of the features of the super80m.
+     The "developer" field has the name of the original author.
+ -->
+	<software name="pontoon">
+		<description>Shep's Casino (Pontoon)</description>
+		<year>1981</year>
+		<publisher>unknown</publisher>
+		<info name="serial" value="002L4" />
+		<info name="developer" value="Glyn Shepherd"/>
+		<info name="usage" value="LOAD while in BASIC, then RUN" />
+		<part name="cass" interface="super80_cass">
+			<dataarea name="cass" size="5463644">
+				<rom name="pontoon.wav" size="5463644" crc="f50d41a5" sha1="6ec6eb7eaf80d433dab3b0d3115e570573df7f04" offset="0" />
+			</dataarea>
+		</part>
+	</software>
+	<software name="riverboa">
+		<description>Riverboat</description>
+		<year>1981</year>
+		<publisher>unknown</publisher>
+		<info name="serial" value="003L4" />
+		<info name="usage" value="LOAD while in BASIC, then RUN" />
+		<part name="cass" interface="super80_cass">
+			<dataarea name="cass" size="2845384">
+				<rom name="riverboat.wav" size="2845384" crc="5ee507b1" sha1="c4561727a4b1a105e3590beef1dc9b8432f05a7e" offset="0" />
+			</dataarea>
+		</part>
+	</software>
+	<software name="riverboatj" cloneof="riverboa">
+		<description>Riverboat (arrow keys)</description>
+		<year>1981</year>
+		<publisher>unknown</publisher>
+		<info name="serial" value="003L4J" />
+		<info name="usage" value="LOAD while in BASIC, then RUN" />
+		<part name="cass" interface="super80_cass">
+			<dataarea name="cass" size="2844850">
+				<rom name="riverboat.wav" size="2844850" crc="06438381" sha1="dc22308ffaa63c82e3fcfbe943832a269c07fe4d" offset="0" />
+			</dataarea>
+		</part>
+	</software>
+	<software name="tibetian">
+		<description>Tibetian Disks</description>
+		<year>1981</year>
+		<publisher>unknown</publisher>
+		<info name="serial" value="004L4" />
+		<info name="usage" value="LOAD while in BASIC, then RUN" />
+		<part name="cass" interface="super80_cass">
+			<dataarea name="cass" size="2408946">
+				<rom name="tibetiandisks.wav" size="2408946" crc="00b8d245" sha1="80c9c287ad4bc1dbb42132c80d1650b63f163ee5" offset="0" />
+			</dataarea>
+		</part>
+	</software>
+	<software name="matchmat">
+		<description>Match Mates</description>
+		<year>1981</year>
+		<publisher>unknown</publisher>
+		<info name="serial" value="005L4" />
+		<info name="developer" value="Glyn Shepherd"/>
+		<info name="usage" value="LOAD while in BASIC, then RUN" />
+		<part name="cass" interface="super80_cass">
+			<dataarea name="cass" size="3718072">
+				<rom name="matchmates.wav" size="3718072" crc="4fb3cb4d" sha1="75cf751097390e1b823b022b270e150ab15abfef" offset="0" />
+			</dataarea>
+		</part>
+	</software>
+	<software name="aceyduce">
+		<description>Acey-Ducey</description>
+		<year>1981</year>
+		<publisher>unknown</publisher>
+		<info name="serial" value="006L4" />
+		<info name="developer" value="Glyn Shepherd"/>
+		<info name="usage" value="LOAD while in BASIC, then RUN" />
+		<part name="cass" interface="super80_cass">
+			<dataarea name="cass" size="4153556">
+				<rom name="aceyducey.wav" size="4153556" crc="0b8aab7a" sha1="77445735df1154e3b1c9a7d8baaf8465a7f6ec30" offset="0" />
+			</dataarea>
+		</part>
+	</software>
 </softwarelist>
diff --git a/src/mame/drivers/excali64.cpp b/src/mame/drivers/excali64.cpp
index 8565eb550ba..1e57d16ef40 100644
--- a/src/mame/drivers/excali64.cpp
+++ b/src/mame/drivers/excali64.cpp
@@ -570,7 +570,7 @@ static MACHINE_CONFIG_START( excali64, excali64_state )
 	MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
 	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 
 	/* Video hardware */
 	MCFG_SCREEN_ADD("screen", RASTER)
diff --git a/src/mame/drivers/fc100.cpp b/src/mame/drivers/fc100.cpp
index a8f58852a2f..ba151b0dbdb 100644
--- a/src/mame/drivers/fc100.cpp
+++ b/src/mame/drivers/fc100.cpp
@@ -529,7 +529,7 @@ static MACHINE_CONFIG_START( fc100, fc100_state )
 	/* sound hardware */
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 	MCFG_SOUND_ADD("psg", AY8910, XTAL_7_15909MHz/3/2)  /* AY-3-8910 - clock not verified */
 	MCFG_AY8910_PORT_A_READ_CB(IOPORT("JOY0"))
 	MCFG_AY8910_PORT_B_READ_CB(IOPORT("JOY1"))
diff --git a/src/mame/drivers/mbee.cpp b/src/mame/drivers/mbee.cpp
index e3c8495a647..f884c943034 100644
--- a/src/mame/drivers/mbee.cpp
+++ b/src/mame/drivers/mbee.cpp
@@ -662,7 +662,7 @@ static MACHINE_CONFIG_START( mbee, mbee_state )
 	/* sound hardware */
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 	MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
 	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
 
@@ -721,7 +721,7 @@ static MACHINE_CONFIG_START( mbeeic, mbee_state )
 	/* sound hardware */
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 	MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
 	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
 
diff --git a/src/mame/drivers/mycom.cpp b/src/mame/drivers/mycom.cpp
index 32df87b41f2..ca84002695e 100644
--- a/src/mame/drivers/mycom.cpp
+++ b/src/mame/drivers/mycom.cpp
@@ -542,7 +542,7 @@ static MACHINE_CONFIG_START( mycom, mycom_state )
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 
 	MCFG_SOUND_ADD("sn1", SN76489, XTAL_10MHz / 4)
 	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.50)
diff --git a/src/mame/drivers/pegasus.cpp b/src/mame/drivers/pegasus.cpp
index 39e921783a7..395cad82b3f 100644
--- a/src/mame/drivers/pegasus.cpp
+++ b/src/mame/drivers/pegasus.cpp
@@ -501,7 +501,7 @@ static MACHINE_CONFIG_START( pegasus, pegasus_state )
 	/* sound hardware */
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 
 	/* devices */
 	MCFG_DEVICE_ADD("pia_s", PIA6821, 0)
diff --git a/src/mame/drivers/ptcsol.cpp b/src/mame/drivers/ptcsol.cpp
index d444a07fb45..97d8af9ca13 100644
--- a/src/mame/drivers/ptcsol.cpp
+++ b/src/mame/drivers/ptcsol.cpp
@@ -742,9 +742,9 @@ static MACHINE_CONFIG_START( sol20, sol20_state )
 	/* sound hardware */
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) // cass1 speaker
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05) // cass1 speaker
 	MCFG_SOUND_WAVE_ADD(WAVE2_TAG, "cassette2")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) // cass2 speaker
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05) // cass2 speaker
 
 	// devices
 	MCFG_CASSETTE_ADD("cassette")
diff --git a/src/mame/drivers/ravens.cpp b/src/mame/drivers/ravens.cpp
index f9957ca5bc2..67709f34675 100644
--- a/src/mame/drivers/ravens.cpp
+++ b/src/mame/drivers/ravens.cpp
@@ -341,7 +341,7 @@ static MACHINE_CONFIG_START( ravens, ravens_state )
 	MCFG_CASSETTE_ADD( "cassette" )
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 MACHINE_CONFIG_END
 
 static MACHINE_CONFIG_START( ravens2, ravens_state )
@@ -364,7 +364,7 @@ static MACHINE_CONFIG_START( ravens2, ravens_state )
 	MCFG_CASSETTE_ADD( "cassette" )
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 MACHINE_CONFIG_END
 
 /* ROM definition */
diff --git a/src/mame/drivers/sorcerer.cpp b/src/mame/drivers/sorcerer.cpp
index e4491eebc7f..05e91b0bcdb 100644
--- a/src/mame/drivers/sorcerer.cpp
+++ b/src/mame/drivers/sorcerer.cpp
@@ -418,9 +418,9 @@ static MACHINE_CONFIG_START( sorcerer, sorcerer_state )
 	/* sound hardware */
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) // cass1 speaker
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05) // cass1 speaker
 	MCFG_SOUND_WAVE_ADD(WAVE2_TAG, "cassette2")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) // cass2 speaker
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05) // cass2 speaker
 
 	MCFG_DEVICE_ADD( "uart", AY31015, 0 )
 	MCFG_AY31015_TX_CLOCK(4800.0)
diff --git a/src/mame/drivers/spc1000.cpp b/src/mame/drivers/spc1000.cpp
index c64a9effff6..3040fad5bf7 100644
--- a/src/mame/drivers/spc1000.cpp
+++ b/src/mame/drivers/spc1000.cpp
@@ -477,7 +477,7 @@ static MACHINE_CONFIG_START( spc1000, spc1000_state )
 	MCFG_AY8910_PORT_B_WRITE_CB(DEVWRITE8("cent_data_out", output_latch_device, write))
 	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 
 	MCFG_DEVICE_ADD("ext1", SPC1000_EXP_SLOT, 0)
 	MCFG_DEVICE_SLOT_INTERFACE(spc1000_exp, nullptr, false)
diff --git a/src/mame/drivers/super80.cpp b/src/mame/drivers/super80.cpp
index 6327d8abee6..901828b0b91 100644
--- a/src/mame/drivers/super80.cpp
+++ b/src/mame/drivers/super80.cpp
@@ -716,7 +716,7 @@ static MACHINE_CONFIG_START( super80, super80_state )
 	/* sound hardware */
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 	MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
 	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
 
@@ -807,7 +807,7 @@ static MACHINE_CONFIG_START( super80v, super80_state )
 	/* sound hardware */
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 	MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
 	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
 
diff --git a/src/mame/drivers/tavernie.cpp b/src/mame/drivers/tavernie.cpp
index c6ccd0fb51a..2041652fcc3 100644
--- a/src/mame/drivers/tavernie.cpp
+++ b/src/mame/drivers/tavernie.cpp
@@ -304,7 +304,7 @@ static MACHINE_CONFIG_START( cpu09, tavernie_state )
 	/* sound hardware */
 	MCFG_SPEAKER_STANDARD_MONO("mono")
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 
 	/* Devices */
 	MCFG_CASSETTE_ADD( "cassette" )
diff --git a/src/mame/drivers/tec1.cpp b/src/mame/drivers/tec1.cpp
index 99714f7e97a..f07ec5e7662 100644
--- a/src/mame/drivers/tec1.cpp
+++ b/src/mame/drivers/tec1.cpp
@@ -429,7 +429,7 @@ static MACHINE_CONFIG_START( tecjmon, tec1_state )
 	MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
 	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 
 	/* Devices */
 	MCFG_CASSETTE_ADD( "cassette" )
diff --git a/src/mame/drivers/trs80.cpp b/src/mame/drivers/trs80.cpp
index 1bb5c3e0ae0..a57fcf472a2 100644
--- a/src/mame/drivers/trs80.cpp
+++ b/src/mame/drivers/trs80.cpp
@@ -581,7 +581,7 @@ static MACHINE_CONFIG_START( trs80, trs80_state )       // the original model I,
 	MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
 	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
 	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
-	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05)
 
 	/* devices */
 	MCFG_CASSETTE_ADD( "cassette" )