diff --git a/xorriso-dd-target/xorriso-dd-target b/xorriso-dd-target/xorriso-dd-target
index 85d2b4cd..00de6514 100755
--- a/xorriso-dd-target/xorriso-dd-target
+++ b/xorriso-dd-target/xorriso-dd-target
@@ -334,8 +334,9 @@ list_devices() {
   fi
   if test -z "$devs"
   then
-    # Obtain list of top-level names which do not look like CD or floppy.
-    devs=$("$lsblk_cmd" -d -n -o NAME  | grep -v '^sr[0-9]' | grep -v '^fd[0-9]')
+    # Obtain list of top-level names which do not look like CD, floppy, RAM dev
+    devs=$("$lsblk_cmd" -d -n -o NAME | grep -v '^sr[0-9]' \
+           | grep -v '^fd[0-9]' | grep -v '^zram[0-9]')
   fi
   
   not_advised=0
@@ -356,11 +357,18 @@ list_devices() {
     then
       yucky=y
       reasons="${reasons}looks_like_disk_partition- "
-    fi
-    if echo "$name" | grep '^sr[0-9]' >/dev/null
+    elif echo "$name" | grep '^sr[0-9]' >/dev/null
     then
       yucky=y
       reasons="${reasons}looks_like_cd_drive- "
+    elif echo "$name" | grep '^fd[0-9]' >/dev/null
+    then
+      yucky=y
+      reasons="${reasons}looks_like_floppy- "
+    elif echo "$name" | grep '^zram[0-9]' >/dev/null
+    then
+      yucky=y
+      reasons="${reasons}looks_like_ramdev- "
     fi
 
     # >>> recognize the device from which Debian Live booted
diff --git a/xorriso-dd-target/xorriso-dd-target.1 b/xorriso-dd-target/xorriso-dd-target.1
index 727fc8ad..51236a33 100644
--- a/xorriso-dd-target/xorriso-dd-target.1
+++ b/xorriso-dd-target/xorriso-dd-target.1
@@ -9,7 +9,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISO-DD-TARGET 1 "Version 1.5.3, Dec 2, 2019"
+.TH XORRISO-DD-TARGET 1 "Version 1.5.3, Dec 5, 2019"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
@@ -95,7 +95,7 @@ sde
 .br
 For the more curious user, there is option \fB\-list_all\fR which prints
 the evaluation of each disk\-like device that is listed by program lsblk.
-Optical drives and floppy disks are excluded, though.
+Optical drives, floppy disks, RAM block devices are excluded, though.
 .br
 Each device is shown by one line of the form
 .br
@@ -336,6 +336,14 @@ This reason overrides any "has_XYZ\-" reason.
 A given device name looks like the name of an optical drive: sr[0\-9]*.
 Use program \fBxorrecord\fR for this kind of devices.
 .br
+\fBlooks_like_floppy\-\fR
+.br
+A given device name looks like the name of a floppy disk drive: fd[0\-9]*.
+.br
+\fBlooks_like_ramdev\-\fR
+.br
+A given device name looks like the name of a ram block device: zram[0\-9]*.
+.br
 \fBlooks_like_disk_partition\-\fR
 .br
 A given device name looks like the name of a partition. Expected are names
diff --git a/xorriso-dd-target/xorriso-dd-target.info b/xorriso-dd-target/xorriso-dd-target.info
index e33518dc..4af7775a 100644
--- a/xorriso-dd-target/xorriso-dd-target.info
+++ b/xorriso-dd-target/xorriso-dd-target.info
@@ -96,7 +96,7 @@ File: xorriso-dd-target.info,  Node: Listall,  Next: Givendevices,  Prev: Simple
 
 For the more curious user, there is option *-list_all* which prints the
 evaluation of each disk-like device that is listed by program lsblk.
-Optical drives and floppy disks are excluded, though.
+Optical drives, floppy disks, RAM block devices are excluded, though.
 Each device is shown by one line of the form
 name : advice : reasoning : info
 *name* is the device name without "/dev/" prefix.
@@ -279,6 +279,12 @@ This reason overrides any "has_XYZ-" reason.
 *looks_like_cd_drive-*
 A given device name looks like the name of an optical drive: sr[0-9]*.
 Use program *xorrecord* for this kind of devices.
+*looks_like_floppy-*
+A given device name looks like the name of a floppy disk drive:
+fd[0-9]*.
+*looks_like_ramdev-*
+A given device name looks like the name of a ram block device:
+zram[0-9]*.
 *looks_like_disk_partition-*
 A given device name looks like the name of a partition.  Expected are
 names of base devices, like "sde", not of their partitions, like "sde1".
@@ -502,18 +508,18 @@ Node: Top429
 Node: Overview996
 Node: Simplenames2788
 Node: Listall3399
-Node: Givendevices4809
-Node: Plugtest5611
-Node: Dowrite7451
-Node: Unwise8566
-Node: Reasons9922
-Node: Options12220
-Node: Examples14840
-Node: Files15013
-Node: Seealso15171
-Node: Bugreport15337
-Node: Legal15923
-Node: CommandIdx16627
-Node: ConceptIdx17674
+Node: Givendevices4825
+Node: Plugtest5627
+Node: Dowrite7467
+Node: Unwise8582
+Node: Reasons9938
+Node: Options12427
+Node: Examples15047
+Node: Files15220
+Node: Seealso15378
+Node: Bugreport15544
+Node: Legal16130
+Node: CommandIdx16834
+Node: ConceptIdx17881
 
 End Tag Table
diff --git a/xorriso-dd-target/xorriso-dd-target.texi b/xorriso-dd-target/xorriso-dd-target.texi
index 459ee2d8..44b1fcc8 100644
--- a/xorriso-dd-target/xorriso-dd-target.texi
+++ b/xorriso-dd-target/xorriso-dd-target.texi
@@ -50,7 +50,7 @@
 @c man .\" First parameter, NAME, should be all caps
 @c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 @c man .\" other parameters are allowed: see man(7), man(1)
-@c man .TH XORRISO-DD-TARGET 1 "Version 1.5.3, Dec 2, 2019"
+@c man .TH XORRISO-DD-TARGET 1 "Version 1.5.3, Dec 5, 2019"
 @c man .\" Please adjust this date whenever revising the manpage.
 @c man .\"
 @c man .\" Some roff macros, for reference:
@@ -191,7 +191,7 @@ sde
 @cindex Use case, list all devices with reasoning
 For the more curious user, there is option @strong{-list_all} which prints
 the evaluation of each disk-like device that is listed by program lsblk.
-Optical drives and floppy disks are excluded, though.
+Optical drives, floppy disks, RAM block devices are excluded, though.
 @*
 Each device is shown by one line of the form
 @*
@@ -453,6 +453,14 @@ Use program @strong{xorrecord} for this kind of devices.
 A given device name looks like the name of a partition. Expected are names
 of base devices, like "sde", not of their partitions, like "sde1".
 @*
+@strong{looks_like_floppy-}
+@*
+A given device name looks like the name of a floppy disk drive: fd[0-9]*.
+@*
+@strong{looks_like_ramdev-}
+@*
+A given device name looks like the name of a ram block device: zram[0-9]*.
+@*
 @strong{lsblk_no_size-}
 @*
 A size test is given by -max_size, -min_size, or -image_file but the size of