diff --git a/CHANGES.txt b/CHANGES.txt
index 2926d54..da9b842 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,6 @@
+v3.3.73
+- Bug fix for vendor id.
+
 v3.3.72
 - Bug fix for enabling creating storage pools in Storage Manager for M.2 drives in PCIe adaptor cards. 
 - Bug fix for not copying syno_hdd_db_vendors.txt to script location when script updates itself.
diff --git a/README.md b/README.md
index 4e37389..a925040 100644
--- a/README.md
+++ b/README.md
@@ -98,6 +98,20 @@ ### Running the script via SSH
 
 <p align="leftr"><img src="images/syno_hdd_db.png"></p>
 
+### vendor_ids.txt
+
+You only need to edit syno_hdd_vendor_ids.txt if the script warns you about a missing vendor id.
+
+If DSM doesn't know the brand of your NVMe drives they will show up in Storage Manager as Unknown brand, and Unrecognised firmware version.
+
+<p align="leftr"><img src="images/unknown.png"></p>
+
+In this case the script will show you the vendor ID and advise you to add it to the syno_hdd_vendor_ids.txt file.
+
+<p align="leftr"><img src="images/vendor_ids.png"></p>
+
+<br>
+
 **Credits**
 
 - The idea for this script came from a comment made by Empyrealist on the Synology subreddit.
diff --git a/images/vendor_ids.png b/images/vendor_ids.png
new file mode 100644
index 0000000..a0440f3
Binary files /dev/null and b/images/vendor_ids.png differ
diff --git a/syno_hdd_db.sh b/syno_hdd_db.sh
index bc363a4..02bc6fa 100644
--- a/syno_hdd_db.sh
+++ b/syno_hdd_db.sh
@@ -21,8 +21,8 @@
 #
 # Added new vendor ids for Apacer, aigo, Lexar and Transcend NVMe drives.
 #
-# Now includes syno_hdd_vendor.txt so users can add their NVMe drive's vendor id.
-#   - syno_hdd_vendor.txt needs to be in the same folder as syno_hdd_db.sh
+# Now includes syno_hdd_vendor_ids.txt so users can add their NVMe drive's vendor id.
+#   - syno_hdd_vendor_ids.txt needs to be in the same folder as syno_hdd_db.sh
 #
 # Now warns if script is located on an M.2 volume.
 
@@ -178,7 +178,7 @@ fi
 # Check script is running as root
 if [[ $( whoami ) != "root" ]]; then
     ding
-    echo -e "${Error}ERROR${Off} This script must be run as root or sudo!"
+    echo -e "${Error}ERROR${Off} This script must be run as sudo or root!"
     exit 1
 fi
 
@@ -654,16 +654,16 @@ vendor_from_id(){
         0x05dc) vendor=Lexar ;;
         0x1d79) vendor=Transcend;;
         *)
-            # Get vendor from syno_hdd_vendor.txt
-            vidlist="$scriptpath/syno_hdd_vendor.txt"
+            # Get vendor from syno_hdd_vendor_ids.txt
+            vidlist="$scriptpath/syno_hdd_vendor_ids.txt"
             if [[ -r "$vidlist" ]]; then
                 val=$(synogetkeyvalue "$vidlist" "$1")
-                if synogetkeyvalue "$vidlist" "$1"; then
+                if [[ -n "$val" ]]; then
                     vendor="$val"
                 else
-                    echo -e "\n${Yellow}WARNING{OFF} No vendor found for vid $1" >&2
-                    echo -e "You can add your drive's vendor to: "
-                    echo "$vidlist"
+                    echo -e "\n${Yellow}WARNING${Off} No vendor found for vid $1" >&2
+                    echo -e "You can add ${Cyan}$1${Off} and your drive's vendor to: " >&2
+                    echo "$vidlist" >&2
                 fi
             else
                 echo -e "\n${Error}ERROR{OFF} $vidlist not found!" >&2
@@ -681,9 +681,9 @@ set_vendor(){
                 synosetkeyvalue "$vidfile" "${vid,,}" "$vendor"
                 val=$(synogetkeyvalue "$vidfile" "${vid,,}")
                 if [[ $val == "${vendor}" ]]; then
-                    echo "Added $vendor to pci_vendor_ids" >&2
+                    echo -e "\nAdded $vendor to pci_vendor_ids" >&2
                 else
-                    echo "Failed to add $vendor to pci_vendor_ids!" >&2
+                    echo -e "\nFailed to add $vendor to pci_vendor_ids!" >&2
                 fi
             fi
             if ! grep "$vid" "$vidfile2" >/dev/null; then
@@ -1774,7 +1774,7 @@ if [[ $wdda == "no" ]]; then
 fi
 
 
-# Enabled creating pool on drives in M.2 adaptor card
+# Enable creating pool on drives in M.2 adaptor card
 if [[ -f "$strgmgr" ]]; then
     # StorageManager package is installed
     if [[ ${#m2cards[@]} -gt "0" ]]; then
diff --git a/syno_hdd_vendor_ids.txt b/syno_hdd_vendor_ids.txt
index 12bec6b..44f51d5 100644
--- a/syno_hdd_vendor_ids.txt
+++ b/syno_hdd_vendor_ids.txt
@@ -1,4 +1,6 @@
-# You can add your drive's vendor id and vendor name here
+# You can add your drive's vendor id and vendor name here.
+#
+# Only edit this file if the script warns you about a missing vendor id.
 
 0x1dbe="ADATA"
 0x0ed1="aigo"