diff --git a/hash/cd32.xml b/hash/cd32.xml
index 1b37e25d547..1e021600bab 100644
--- a/hash/cd32.xml
+++ b/hash/cd32.xml
@@ -1751,8 +1751,8 @@ license:CC0
 	</software>
 
 	<!-- http://redump.org/disc/3366/ -->
-	<!--
-	<software name="suprfrog" supported="no">
+	<!-- Listed as possible bad dump on redump.org -->
+	<software name="suprfrog1" supported="no">
 	    <description>Superfrog (Rev 1)</description>
 	    <year>1999</year>
 	    <publisher>Islona</publisher>
@@ -1760,11 +1760,10 @@ license:CC0
 	    <info name="disc_matrix" value="FD7989 THAMESDOWN 01793 421300 ZFS1" />
 	    <part name="cdrom" interface="cd32_cdrom">
 	        <diskarea name="cdrom">
-	            <disk name="superfrog (europe) (rev 1)" sha1=""/>
+	            <disk name="superfrog (europe) (rev 1)" sha1="4295e7e97d90f3709cad9361841942a3f09866c8" status="baddump"/>
 	        </diskarea>
 	    </part>
 	</software>
-	-->
 
 	<!-- http://redump.org/disc/3434/ -->
 	<software name="surfninj" supported="no">
diff --git a/hash/k28m2.xml b/hash/k28m2.xml
index 81b7798c541..64c1d8076d6 100644
--- a/hash/k28m2.xml
+++ b/hash/k28m2.xml
@@ -62,7 +62,7 @@ license:CC0
         <info name="serial" value="CM62218"/>
         <part name="cart" interface="k28m2">
             <dataarea name="rom" size="0x4000">
-                <rom name="cm62218.vsm" size="0x4000" crc="x" sha1="x" />
+                <rom name="cm62218.vsm" size="0x4000" crc="" sha1="" status="nodump" />
             </dataarea>
         </part>
     </software>
diff --git a/hash/megadriv.xml b/hash/megadriv.xml
index 938c77c8957..f5b31800551 100644
--- a/hash/megadriv.xml
+++ b/hash/megadriv.xml
@@ -19198,8 +19198,8 @@ but dumps still have to be confirmed.
 			<dataarea name="rom" width="16" endianness="big" size="1048576">
 				<rom name="mega turrican (may 18, 1993 prototype).bin" size="1048576" crc="3ba35acd" sha1="486fd963b1389806a565dab21c81c46c273c8e5f"/>
 <!-- labels on 512K 27C040s:
-                <rom name="megaturrican odd" size="524288" crc="" sha1="" offset="0x000001" loadflag="load16_byte"/>
-                <rom name="megaturrican even" size="524288" crc="" sha1="" offset="0x000000" loadflag="load16_byte"/>
+                <rom name="megaturrican odd" size="524288" crc="b24e7a97" sha1="37039c6d7e86c859ab8e09c3c1b9f76020806654" offset="0x000000" loadflag="load16_byte"/>
+                <rom name="megaturrican even" size="524288" crc="5575b737" sha1="e33960471e50beff20320b0e40115aa872452c3c" offset="0x000001" loadflag="load16_byte"/>
 -->
 			</dataarea>
 		</part>
diff --git a/hash/msx1_cart.xml b/hash/msx1_cart.xml
index 1e5a09bf6a2..e95237e2c12 100644
--- a/hash/msx1_cart.xml
+++ b/hash/msx1_cart.xml
@@ -1012,7 +1012,7 @@ kept for now until finding out what those bytes affect...
             <feature name="slot" value="ascii8" />
             <feature name="mapper" value="M60002-0125SP" />
             <dataarea name="rom" size="262144">
-                <rom name="lh532045" size="262144" crc="" sha1="" offset="0" />
+                <rom name="lh532045" size="262144" crc="" sha1="" offset="0" status="nodump" />
             </dataarea>
         </part>
     </software>
@@ -1045,7 +1045,7 @@ kept for now until finding out what those bytes affect...
             <feature name="slot" value="ascii8" />
             <feature name="mapper" value="LZ93A13" />
             <dataarea name="rom" size="131072">
-                <rom name="m5m27512p" size="131072" crc="" sha1="" offset="0" />
+                <rom name="m5m27512p" size="131072" crc="" sha1="" offset="0" status="nodump" />
             </dataarea>
         </part>
     </software>
@@ -1062,8 +1062,8 @@ kept for now until finding out what those bytes affect...
             <feature name="slot" value="ascii8" />
             <feature name="mapper" value="LZ93A13" />
             <dataarea name="rom" size="262144">
-                <rom name="m5m27512p" size="131072" crc="" sha1="" offset="0" />
-                <rom name="a27512zb" size="65536" crc="" sha1="" offset="0x20000" />
+                <rom name="m5m27512p" size="131072" crc="" sha1="" offset="0" status="nodump" />
+                <rom name="a27512zb" size="65536" crc="" sha1="" offset="0x20000" status="nodump" />
             </dataarea>
         </part>
     </software>
diff --git a/hash/msx2_cart.xml b/hash/msx2_cart.xml
index 5a9e10567d8..1663109c866 100644
--- a/hash/msx2_cart.xml
+++ b/hash/msx2_cart.xml
@@ -755,10 +755,10 @@ LZ93A13 (32 pin) - 8KB banks
             <feature name="mapper" value="M60002-0115FP" />
             <feature name="sram" value="D4464C-20L" />
             <dataarea name="rom" size="">
-                <rom name="jr_mate_1_v1.0" size="131072" crc="" sha1="" offset="0" />
-                <rom name="jr_mate_2_v1.0" size="131072" crc="" sha1="" offset="0x20000" />
+                <rom name="jr_mate_1_v1.0" size="131072" crc="" sha1="" offset="0" status="nodump" />
+                <rom name="jr_mate_2_v1.0" size="131072" crc="" sha1="" offset="0x20000" status="nodump" />
                 <!- Kanji rom ->
-                <rom name="tc531000p-6616" size="131072" crc="" sha1="" offset="0x40000" />
+                <rom name="tc531000p-6616" size="131072" crc="" sha1="" offset="0x40000" status="nodump" />
             </dataarea>
         </part>
     </software>
@@ -842,7 +842,7 @@ LZ93A13 (32 pin) - 8KB banks
             <feature name="slot" value="ascii8" />
             <feature name="mapper" value="NEOS MR6401" />
             <dataarea name="rom" size="131072">
-                <rom name="rp231024d" size="131072" crc="" sha1="" offset="0" />
+                <rom name="rp231024d" size="131072" crc="" sha1="" offset="0" status="nodump" />
             </dataarea>
         </part>
     </software>
diff --git a/hash/neogeo.xml b/hash/neogeo.xml
index a419a2f00ab..a3a820c29d7 100644
--- a/hash/neogeo.xml
+++ b/hash/neogeo.xml
@@ -1123,7 +1123,7 @@ license:CC0
 				<rom loadflag="load16_word_swap" name="019-p1.p1" offset="0x000000" size="0x080000" crc="a2de8445" sha1="893d7ae72b4644123469de143fa35fac1cbcd61e" />   <!-- TC534200 -->
 			</dataarea>
 			<dataarea name="mcu" size="0x1000">
-				<!-- <rom name="hd6301v1p.com", 0x0000, 0x1000, NO_DUMP /> -->  <!-- Hitachi HD6301V1 MCU -->
+				<!-- <rom name="hd6301v1p.com" offset="0x0000" size="0x1000" crc="" sha1="" status="nodump" /> -->  <!-- Hitachi HD6301V1 MCU -->
 			</dataarea>
 			<dataarea name="fixed" size="0x040000">
 				<rom offset="0x000000" size="0x020000" name="019-s1.s1" crc="5fcdc0ed" sha1="86415077e7adc3ba6153eeb4fb0c62cf36e903fa" />   <!-- TC531000 -->
@@ -2107,7 +2107,7 @@ license:CC0
 				<rom loadflag="load16_word_swap" name="038-p2.p2" offset="0x080000" size="0x080000" crc="a5193e2f" sha1="96803480439e90da23cdca70d59ff519ee85beeb" />   <!-- TC534200 -->
 			</dataarea>
 			<dataarea name="mcu" size="0x1000">
-				<!-- <rom name="hd6301v1p.hd6301v1", 0x0000, 0x1000, NO_DUMP /> --> <!-- Hitachi HD6301V1 MCU -->
+				<!-- <rom name="hd6301v1p.hd8301v1" offset="0x0000" size="0x1000" crc="" sha1="" status="nodump" /> -->  <!-- Hitachi HD6301V1 MCU -->
 			</dataarea>
 			<dataarea name="fixed" size="0x040000">
 				<rom offset="0x000000" size="0x020000" name="038-s1.s1" crc="fff62ae3" sha1="6510a762ea41557a8938cbfc0557cd5921306061" />   <!-- TC531000 -->
diff --git a/hash/timex_cass.xml b/hash/timex_cass.xml
index 9409f180eae..e9e3b030f60 100644
--- a/hash/timex_cass.xml
+++ b/hash/timex_cass.xml
@@ -16,8 +16,9 @@ license:CC0
 
 
     Known software without a TZX or TAP dump:
-        Geovideo 4  (198x)(Paulo Sergio Coelho)     ->  https://www.worldofspectrum.org/infoseekid.cgi?id=4000104
-
+        Geovideo 4  (198x)(Paulo Sergio Coelho)  ->  https://spectrumcomputing.co.uk/entry/4000104
+		Interface RS232 (Portugal)  ->  https://spectrumcomputing.co.uk/entry/25400
+		
     Current bad dumps:
         Cozinheiro (198x)(TMX Portugal Ltda)
         Fórmula 1 (198x)(TMX Portugal Ltda)
@@ -660,19 +661,6 @@ license:CC0
 		</part>
 	</software>
 
-<!--
-    <software name="intrs232p" cloneof="intrs232">
-        <description>Interface RS232 (Portugal)</description>
-        <year>198?</year>
-        <publisher>TMX Portugal Ltda</publisher>
-        <part name="cass" interface="spectrum_cass">
-            <dataarea name="cass" size="">
-                <rom name="interface rs232 (198x)(tmx portugal ltda).tzx" size="" crc="" sha1=""/>
-            </dataarea>
-        </part>
-    </software>
--->
-
 	<software name="invasore">
 		<description>Invasores Lunares</description>
 		<year>198?</year>