diff --git a/src/N_m3u8DL-RE.Common/Entity/StreamSpec.cs b/src/N_m3u8DL-RE.Common/Entity/StreamSpec.cs
index 7198c79..5027b26 100644
--- a/src/N_m3u8DL-RE.Common/Entity/StreamSpec.cs
+++ b/src/N_m3u8DL-RE.Common/Entity/StreamSpec.cs
@@ -60,7 +60,7 @@ namespace N_m3u8DL_RE.Common.Entity
             else
             {
                 prefixStr = $"[aqua]Vid[/] {encStr}";
-                var d = $"{Resolution} | {Bandwidth / 1000} Kbps | {Name} | {FrameRate} | {Codecs} | {(Playlist != null ? Playlist.MediaParts.Sum(x => x.MediaSegments.Count) + " Segments" : "")}";
+                var d = $"{Resolution} | {Bandwidth / 1000} Kbps | {GroupId} | {FrameRate} | {Codecs} | {(Playlist != null ? Playlist.MediaParts.Sum(x => x.MediaSegments.Count) + " Segments" : "")}";
                 returnStr = d.EscapeMarkup();
             }
 
diff --git a/src/N_m3u8DL-RE.Parser/Extractor/DASHExtractor.cs b/src/N_m3u8DL-RE.Parser/Extractor/DASHExtractor.cs
index e65180d..58bda88 100644
--- a/src/N_m3u8DL-RE.Parser/Extractor/DASHExtractor.cs
+++ b/src/N_m3u8DL-RE.Parser/Extractor/DASHExtractor.cs
@@ -445,7 +445,7 @@ namespace N_m3u8DL_RE.Parser.Extractor
             {
                 //基本信息
                 StreamSpec streamSpec = new();
-                streamSpec.Name = item["FormatId"].GetValue<string>();
+                streamSpec.GroupId = item["FormatId"].GetValue<string>();
                 streamSpec.Bandwidth = item["Tbr"].GetValue<int>();
                 streamSpec.Codecs = item["Codecs"].GetValue<string>();
                 streamSpec.Language = item["Language"].GetValue<string>();
@@ -543,14 +543,40 @@ namespace N_m3u8DL_RE.Parser.Extractor
                 streamSpec.Playlist = playlist;
                 streamList.Add(streamSpec);
             }
+
+            //为视频设置默认轨道
+            var aL = streamList.Where(s => s.MediaType == MediaType.AUDIO);
+            var sL = streamList.Where(s => s.MediaType == MediaType.SUBTITLES);
+            foreach (var item in streamList)
+            {
+                if (!string.IsNullOrEmpty(item.Resolution)) 
+                {
+                    if (aL.Any())
+                    {
+                        item.AudioId = aL.First().GroupId;
+                    }
+                    if (sL.Any())
+                    {
+                        item.SubtitleId = sL.First().GroupId;
+                    }
+                }
+            }
+
             return streamList;
         }
 
-        static bool CheckValid(string url)
+        bool CheckValid(string url)
         {
             try
             {
                 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(new Uri(url));
+                if (ParserConfig.Headers != null)
+                {
+                    foreach (var item in ParserConfig.Headers)
+                    {
+                        request.Headers.Add(item.Key, item.Value);
+                    }
+                }
                 request.Timeout = 120000;
                 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                 if (((int)response.StatusCode).ToString().StartsWith("2")) return true;
diff --git a/src/N_m3u8DL-RE/Program.cs b/src/N_m3u8DL-RE/Program.cs
index da618ef..448de46 100644
--- a/src/N_m3u8DL-RE/Program.cs
+++ b/src/N_m3u8DL-RE/Program.cs
@@ -32,8 +32,8 @@ namespace N_m3u8DL_RE
                 //Logger.LogLevel = LogLevel.DEBUG;
                 var config = new ParserConfig();
                 var url = string.Empty;
-                url = "http://playertest.longtailvideo.com/adaptive/oceans_aes/oceans_aes.m3u8";
-                //url = "https://bitmovin-a.akamaihd.net/content/MI201109210084_1/mpds/f08e80da-bf1d-4e3d-8899-f0f6155f6efa.mpd";
+                //url = "http://playertest.longtailvideo.com/adaptive/oceans_aes/oceans_aes.m3u8";
+                url = "https://bitmovin-a.akamaihd.net/content/MI201109210084_1/mpds/f08e80da-bf1d-4e3d-8899-f0f6155f6efa.mpd";
 
                 if (string.IsNullOrEmpty(url))
                 {