diff --git a/scripts/z-Check Availability/Check Availability.sh b/scripts/z-Check Availability/Check Availability.sh
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+++ b/scripts/z-Check Availability/Check Availability.sh	
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+#!/bin/bash
+#
+# TheFrenchGhosty's Ultimate YouTube-DL Scripts Collection: The ultimate collection of scripts for YouTube-DL
+# https://github.com/TheFrenchGhosty/TheFrenchGhostys-Ultimate-YouTube-DL-Scripts-Collection
+# https://github.com/TheFrenchGhosty
+#
+# Version: EXPERIMENTAL
+#
+
+
+output_file="unavailable_videos.txt"
+
+# Function to extract YouTube video IDs from filenames
+get_video_ids() {
+    find . -type f -name "*\[*\].mkv" | sed 's/.*\[//;s/\].mkv$//'
+}
+
+# Check if a YouTube video is still available
+is_video_available() {
+    video_id="$1"
+    if yt-dlp -e "https://www.youtube.com/watch?v=${video_id}" >/dev/null 2>&1; then
+        return 0  # Available
+    else
+        return 1  # Unavailable
+    fi
+}
+
+# Main loop
+for video_id in $(get_video_ids); do
+    if ! is_video_available "$video_id"; then
+        echo "$video_id" >> "$output_file"
+    fi
+done
+
+echo "Unavailable YouTube video IDs have been saved to $output_file"
diff --git a/scripts/z-Check Availability/README.md b/scripts/z-Check Availability/README.md
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+# Check Availability Script
+
+An experimental script that check if the downloaded videos are still available on YouTube.
+
+See the reasoning in: https://github.com/TheFrenchGhosty/TheFrenchGhostys-Ultimate-YouTube-DL-Scripts-Collection/issues/65
+
+This scripts only supports YouTube, running it on a folder that contain videos from other source will just make those videos appear as not available on YouTube.
+
+
+This script was made with ChatGPT 3 and fixed by hand.
+
+Prompt: "I have a lot of files named "file [youtube video ID].mkv". Make a bash script that recursively get those youtube videos ID and check if those videos are still available on youtube. If they aren't, output the ID to a text file."
+
+
+# Usage
+
+Copy this script next to the download script and run it.
+
+The list of available videos will be outputed to `unavailable_videos.txt` next to the script.
+
+
+# Warning
+
+This script is highly experimental and hasn't been as extensively tested as the other scripts.
+
+Nothing bad should happen, however, use it at your own risk.
+
+If you do run it and notice any bug with it, please open an issue.