diff --git a/scripts/misc/hw_test.sh b/scripts/misc/hw_test.sh
index 4f2090df..f8578d89 100644
--- a/scripts/misc/hw_test.sh
+++ b/scripts/misc/hw_test.sh
@@ -6,9 +6,9 @@
 dd if=/dev/urandom of=a.adf bs=512 count=1760
 disk-analyse -e 2 a.adf b.adf
 disk-analyse a.adf a.scp
-python3 gw.py write --adjust-speed --ecyl=2 a.scp
+python3 gw.py write --ecyl=2 a.scp
 python3 gw.py read --revs=1 --ecyl=2 b.scp
 disk-analyse -e 2 b.scp c.adf
 diff b.adf c.adf
 md5sum b.adf c.adf
-rm -f a.adf b.adf c.adf a.scp b.scp c.scp
+rm -f a.adf b.adf c.adf a.scp b.scp
diff --git a/scripts/misc/sw_test.sh b/scripts/misc/sw_test.sh
new file mode 100644
index 00000000..690a49a8
--- /dev/null
+++ b/scripts/misc/sw_test.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# Creates a random Amiga ADF, writes the first three cylinders of a disk,
+# dumps those cylinders back, and checks against original ADF.
+
+# Write SCP, Read SCP
+dd if=/dev/urandom of=a.adf bs=512 count=1760
+disk-analyse -e 2 a.adf b.adf
+disk-analyse a.adf a.scp
+python3 gw.py write --ecyl=2 a.scp
+python3 gw.py read --revs=1 --ecyl=2 b.scp
+disk-analyse -e 2 b.scp c.adf
+diff b.adf c.adf
+md5sum b.adf c.adf
+rm -f a.adf b.adf c.adf a.scp b.scp
+
+# Write IPF, Read HFE
+dd if=/dev/urandom of=a.adf bs=512 count=1760
+disk-analyse -e 2 a.adf b.adf
+disk-analyse a.adf a.ipf
+python3 gw.py write --ecyl=2 a.ipf
+python3 gw.py read --revs=1 --ecyl=2 b.hfe
+disk-analyse -e 2 b.hfe c.adf
+diff b.adf c.adf
+md5sum b.adf c.adf
+rm -f a.adf b.adf c.adf a.ipf b.hfe
+
+# Write HFE, Read HFE
+dd if=/dev/urandom of=a.adf bs=512 count=1760
+disk-analyse -e 2 a.adf b.adf
+disk-analyse a.adf a.hfe
+python3 gw.py write --ecyl=2 a.hfe
+python3 gw.py read --revs=1 --ecyl=2 b.hfe
+disk-analyse -e 2 b.hfe c.adf
+diff b.adf c.adf
+md5sum b.adf c.adf
+rm -f a.adf b.adf c.adf a.hfe b.hfe
+