diff --git a/examples/sample.source.LDAP3/Makefile b/examples/sample.source.LDAP3/Makefile
index d75f569..1c4ff23 100644
--- a/examples/sample.source.LDAP3/Makefile
+++ b/examples/sample.source.LDAP3/Makefile
@@ -208,6 +208,23 @@
 	diff ./.tmp.1.$$ ./.tmp.2.$$ || exit 2; \
 	rm -f ./.tmp.[12].$$; \
 	done; fi
+	@if test -f ./sample-LDAPMessage-1.xer ; then \
+	for f in ./sample-LDAPMessage-*.xer; do \
+	echo "Recoding $$f into DER and back..."; \
+	./${TARGET} -ixer -oder $$f > ./.tmp.1.$$ || exit 2; \
+	./${TARGET} -iber -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
+	diff $$f ./.tmp.2.$$ || exit 2; \
+	rm -f ./.tmp.[12].$$; \
+	done; fi
+	@if test -f ./sample-LDAPMessage-1.per ; then \
+	for f in ./sample-LDAPMessage-*.per; do \
+	echo "Recoding $$f into DER into XER and back..."; \
+	./${TARGET} -iper -oder $$f > ./.tmp.1.$$ || exit 2; \
+	./${TARGET} -ider -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
+	./${TARGET} -ixer -oper ./.tmp.2.$$ > ./.tmp.1.$$ || exit 2; \
+	diff $$f ./.tmp.1.$$ || exit 2; \
+	rm -f ./.tmp.[12].$$; \
+	done; fi
 	@echo ================
 	@echo All tests passed
 	@echo ================
diff --git a/examples/sample.source.MEGACO/Makefile b/examples/sample.source.MEGACO/Makefile
index d05f4a4..fdc878b 100644
--- a/examples/sample.source.MEGACO/Makefile
+++ b/examples/sample.source.MEGACO/Makefile
@@ -330,6 +330,23 @@
 	diff ./.tmp.1.$$ ./.tmp.2.$$ || exit 2; \
 	rm -f ./.tmp.[12].$$; \
 	done; fi
+	@if test -f ./sample-MegacoMessage-1.xer ; then \
+	for f in ./sample-MegacoMessage-*.xer; do \
+	echo "Recoding $$f into DER and back..."; \
+	./${TARGET} -ixer -oder $$f > ./.tmp.1.$$ || exit 2; \
+	./${TARGET} -iber -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
+	diff $$f ./.tmp.2.$$ || exit 2; \
+	rm -f ./.tmp.[12].$$; \
+	done; fi
+	@if test -f ./sample-MegacoMessage-1.per ; then \
+	for f in ./sample-MegacoMessage-*.per; do \
+	echo "Recoding $$f into DER into XER and back..."; \
+	./${TARGET} -iper -oder $$f > ./.tmp.1.$$ || exit 2; \
+	./${TARGET} -ider -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
+	./${TARGET} -ixer -oper ./.tmp.2.$$ > ./.tmp.1.$$ || exit 2; \
+	diff $$f ./.tmp.1.$$ || exit 2; \
+	rm -f ./.tmp.[12].$$; \
+	done; fi
 	@echo ================
 	@echo All tests passed
 	@echo ================
diff --git a/examples/sample.source.PKIX1/Makefile b/examples/sample.source.PKIX1/Makefile
index c1846ab..de54195 100644
--- a/examples/sample.source.PKIX1/Makefile
+++ b/examples/sample.source.PKIX1/Makefile
@@ -390,6 +390,23 @@
 	diff ./.tmp.1.$$ ./.tmp.2.$$ || exit 2; \
 	rm -f ./.tmp.[12].$$; \
 	done; fi
+	@if test -f ./sample-Certificate-1.xer ; then \
+	for f in ./sample-Certificate-*.xer; do \
+	echo "Recoding $$f into DER and back..."; \
+	./${TARGET} -ixer -oder $$f > ./.tmp.1.$$ || exit 2; \
+	./${TARGET} -iber -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
+	diff $$f ./.tmp.2.$$ || exit 2; \
+	rm -f ./.tmp.[12].$$; \
+	done; fi
+	@if test -f ./sample-Certificate-1.per ; then \
+	for f in ./sample-Certificate-*.per; do \
+	echo "Recoding $$f into DER into XER and back..."; \
+	./${TARGET} -iper -oder $$f > ./.tmp.1.$$ || exit 2; \
+	./${TARGET} -ider -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
+	./${TARGET} -ixer -oper ./.tmp.2.$$ > ./.tmp.1.$$ || exit 2; \
+	diff $$f ./.tmp.1.$$ || exit 2; \
+	rm -f ./.tmp.[12].$$; \
+	done; fi
 	@echo ================
 	@echo All tests passed
 	@echo ================
diff --git a/examples/sample.source.RRC/Makefile b/examples/sample.source.RRC/Makefile
index 717e734..862f2ca 100644
--- a/examples/sample.source.RRC/Makefile
+++ b/examples/sample.source.RRC/Makefile
@@ -4785,6 +4785,23 @@
 	diff ./.tmp.1.$$ ./.tmp.2.$$ || exit 2; \
 	rm -f ./.tmp.[12].$$; \
 	done; fi
+	@if test -f ./sample-DL-DCCH-Message-1.xer ; then \
+	for f in ./sample-DL-DCCH-Message-*.xer; do \
+	echo "Recoding $$f into DER and back..."; \
+	./${TARGET} -ixer -oder $$f > ./.tmp.1.$$ || exit 2; \
+	./${TARGET} -iber -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
+	diff $$f ./.tmp.2.$$ || exit 2; \
+	rm -f ./.tmp.[12].$$; \
+	done; fi
+	@if test -f ./sample-DL-DCCH-Message-1.per ; then \
+	for f in ./sample-DL-DCCH-Message-*.per; do \
+	echo "Recoding $$f into DER into XER and back..."; \
+	./${TARGET} -iper -oder $$f > ./.tmp.1.$$ || exit 2; \
+	./${TARGET} -ider -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
+	./${TARGET} -ixer -oper ./.tmp.2.$$ > ./.tmp.1.$$ || exit 2; \
+	diff $$f ./.tmp.1.$$ || exit 2; \
+	rm -f ./.tmp.[12].$$; \
+	done; fi
 	@echo ================
 	@echo All tests passed
 	@echo ================
diff --git a/examples/sample.source.TAP3/Makefile b/examples/sample.source.TAP3/Makefile
index 7458688..4dd100c 100644
--- a/examples/sample.source.TAP3/Makefile
+++ b/examples/sample.source.TAP3/Makefile
@@ -724,6 +724,23 @@
 	diff ./.tmp.1.$$ ./.tmp.2.$$ || exit 2; \
 	rm -f ./.tmp.[12].$$; \
 	done; fi
+	@if test -f ./sample-DataInterChange-1.xer ; then \
+	for f in ./sample-DataInterChange-*.xer; do \
+	echo "Recoding $$f into DER and back..."; \
+	./${TARGET} -ixer -oder $$f > ./.tmp.1.$$ || exit 2; \
+	./${TARGET} -iber -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
+	diff $$f ./.tmp.2.$$ || exit 2; \
+	rm -f ./.tmp.[12].$$; \
+	done; fi
+	@if test -f ./sample-DataInterChange-1.per ; then \
+	for f in ./sample-DataInterChange-*.per; do \
+	echo "Recoding $$f into DER into XER and back..."; \
+	./${TARGET} -iper -oder $$f > ./.tmp.1.$$ || exit 2; \
+	./${TARGET} -ider -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
+	./${TARGET} -ixer -oper ./.tmp.2.$$ > ./.tmp.1.$$ || exit 2; \
+	diff $$f ./.tmp.1.$$ || exit 2; \
+	rm -f ./.tmp.[12].$$; \
+	done; fi
 	@echo ================
 	@echo All tests passed
 	@echo ================