diff --git a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
index f37e223de..9e9bc0780 100644
--- a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
+++ b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
@@ -168,6 +168,12 @@ namespace MediaBrowser.MediaEncoding.Probing
                 }
 
                 ExtractTimestamp(info);
+
+                var stereoMode = GetDictionaryValue(tags, "stereo_mode");
+                if (string.Equals(stereoMode, "left_right", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Video3DFormat = Video3DFormat.FullSideBySide;
+                }
             }
 
             return info;
diff --git a/MediaBrowser.Providers/MediaInfo/FFProbeVideoInfo.cs b/MediaBrowser.Providers/MediaInfo/FFProbeVideoInfo.cs
index e1ab61cbb..c20823535 100644
--- a/MediaBrowser.Providers/MediaInfo/FFProbeVideoInfo.cs
+++ b/MediaBrowser.Providers/MediaInfo/FFProbeVideoInfo.cs
@@ -231,6 +231,8 @@ namespace MediaBrowser.Providers.MediaInfo
             video.HasSubtitles = mediaStreams.Any(i => i.Type == MediaStreamType.Subtitle);
             video.Timestamp = mediaInfo.Timestamp;
 
+            video.Video3DFormat = video.Video3DFormat ?? mediaInfo.Video3DFormat;
+
             await _itemRepo.SaveMediaStreams(video.Id, mediaStreams, cancellationToken).ConfigureAwait(false);
 
             if (options.MetadataRefreshMode == MetadataRefreshMode.FullRefresh ||