diff --git a/source/net/filebot/format/MediaBindingBean.java b/source/net/filebot/format/MediaBindingBean.java
index 871aa596..9db82581 100644
--- a/source/net/filebot/format/MediaBindingBean.java
+++ b/source/net/filebot/format/MediaBindingBean.java
@@ -967,7 +967,13 @@ public class MediaBindingBean {
 	}
 
 	@Define("bytes")
-	public Long getFileSize() {
+	public long getFileSize() {
+		// sum size of all files
+		if (getMediaFile().isDirectory()) {
+			return listFiles(getMediaFile(), FILES).stream().mapToLong(File::length).sum();
+		}
+
+		// size of inferred media file (e.g. video file size for subtitle file)
 		return getInferredMediaFile().length();
 	}
 
diff --git a/source/net/filebot/media/VideoQuality.java b/source/net/filebot/media/VideoQuality.java
index f0587ea7..547733dd 100644
--- a/source/net/filebot/media/VideoQuality.java
+++ b/source/net/filebot/media/VideoQuality.java
@@ -20,7 +20,7 @@ public class VideoQuality implements Comparator<File> {
 		return DESCENDING_ORDER.compare(f1, f2) < 0;
 	}
 
-	private final Comparator<File> chain = comparing(f -> new MediaBindingBean(f, f), comparingInt(this::getRepack).thenComparingInt(this::getResolution).thenComparingLong(this::getSize));
+	private final Comparator<File> chain = comparing(f -> new MediaBindingBean(f, f), comparingInt(this::getRepack).thenComparingInt(this::getResolution).thenComparingLong(MediaBindingBean::getFileSize));
 
 	@Override
 	public int compare(File f1, File f2) {
@@ -48,8 +48,4 @@ public class VideoQuality implements Comparator<File> {
 		return 0;
 	}
 
-	private long getSize(MediaBindingBean m) {
-		return m.getInferredMediaFile().length();
-	}
-
 }