diff --git a/front/packages/models/src/resources/watch-info.ts b/front/packages/models/src/resources/watch-info.ts
index 116ba71e..b0b0e32f 100644
--- a/front/packages/models/src/resources/watch-info.ts
+++ b/front/packages/models/src/resources/watch-info.ts
@@ -110,6 +110,10 @@ export const WatchInfoP = z.object({
 	 * The internal path of the video file.
 	 */
 	path: z.string(),
+	/**
+	 * The extension used to store this video file.
+	 */
+	extension: z.string(),
 	/**
 	 * The container of the video file of this episode. Common containers are mp4, mkv, avi and so on.
 	 */
diff --git a/transcoder/src/identify.rs b/transcoder/src/identify.rs
index 5fd809a2..2ef916d7 100644
--- a/transcoder/src/identify.rs
+++ b/transcoder/src/identify.rs
@@ -20,6 +20,8 @@ pub struct MediaInfo {
 	pub sha: String,
 	/// The internal path of the video file.
 	pub path: String,
+	/// The extension currently used to store this video file
+	pub extension: String,
 	/// The length of the media in seconds.
 	pub length: f32,
 	/// The container of the video file of this episode.
@@ -203,6 +205,7 @@ pub async fn identify(path: String) -> Option<MediaInfo> {
 
 	Some(MediaInfo {
 		length: parse::<f32>(&general["Duration"])?,
+		extension: Path::new(path).extension(),
 		container: general["Format"].as_str().unwrap().to_string(),
 		video: {
 			let v = output["media"]["track"]