diff --git a/DBObj/SongData.cs b/DBObj/SongData.cs
index 1161ad8..74a2895 100644
--- a/DBObj/SongData.cs
+++ b/DBObj/SongData.cs
@@ -76,16 +76,18 @@ namespace DBObj
                 try
                 {
                     var check = IsFtpUriReachable(new Uri(new Uri(server), basic.getFileName()).ToString());
-                    // string fullPath = Path.Combine(server, basic.getFileName());
                     Uri fullUri = new Uri(new Uri(server), basic.getFileName());
-                    // if (File.Exists(fullPath))
-                    // {
-                    //     Console.WriteLine($"找到檔案: {fullPath}");
-                    //     return true;
-                    // }
+                    //string fullPath = Path.Combine(server, basic.getFileName());
+                    //string fileName = Path.GetFileName(basic.getFileName());
+                    //if (File.Exists(fullPath))
+                    //{
+                    //    //Console.WriteLine($"找到檔案: {fullPath}");
+                    //    //if (!File.Exists(Application.StartupPath + fileName)) File.Copy(fullPath, Application.StartupPath + fileName);
+                    //    return true;
+                    //}
                     if (check)
                     {
-                        Console.WriteLine($"找到檔案: {new Uri(new Uri(server), basic.getFileName())}");
+                        // Console.WriteLine($"找到檔案: {new Uri(new Uri(server), basic.getFileName())}");
                         return true;
                     }
                 }
@@ -126,9 +128,9 @@ namespace DBObj
             foreach (var server in Utils.Env.GetSongServers())
             {
 
-                    if (!string.IsNullOrWhiteSpace(server)&&FileExistsInServers())
+                    if (!string.IsNullOrWhiteSpace(server))
                     {
-                        // Console.WriteLine(new Uri(new Uri(server), filename));
+                        Console.WriteLine($"找到檔案: {new Uri(new Uri(server), filename)}");
                         return new Uri(new Uri(server), filename);
                     }
             }
@@ -161,9 +163,9 @@ namespace DBObj
         {
             try
             {
-#pragma warning disable SYSLIB0014 // 類型或成員已經過時
+                #pragma warning disable SYSLIB0014 // 類型或成員已經過時
                 var request = (FtpWebRequest)WebRequest.Create(ftpUri);
-#pragma warning restore SYSLIB0014 // 類型或成員已經過時
+                #pragma warning restore SYSLIB0014 // 類型或成員已經過時
                 request.Method = WebRequestMethods.Ftp.ListDirectory; // Lightweight check
                 // request.Credentials = new NetworkCredential("svr", "svr"); // Replace with actual username/password
                 request.Timeout = 5000;
diff --git a/TCPServer.cs b/TCPServer.cs
index 1dc0c62..1c33b1f 100644
--- a/TCPServer.cs
+++ b/TCPServer.cs
@@ -105,6 +105,8 @@ namespace DualScreenDemo
         // ================================
         private async Task HandleRoomCommand(string request ,NetworkStream stream)
         {
+            var commandHandler = new CommandHandler(Program.songListManager);
+
             string[] parts = request.Split(',', 3); // 最多拆三段
             string cmdPrefix = parts[0].Trim();
             string cmd = parts[1].Trim().ToLowerInvariant();
@@ -129,51 +131,63 @@ namespace DualScreenDemo
                     break;
 
                 case "pause":
-                    TogglePause();
+                    // TogglePause();
+                    commandHandler.ProcessData("A26DA4");
                     break;
 
                 case "volume_up":
-                    OverlayForm.MainForm.Invoke(() => OverlayForm.MainForm.ShowTopRightLabelTime("音量 ↑", "a2 b3 a4"));
+                    // OverlayForm.MainForm.Invoke(() => OverlayForm.MainForm.ShowTopRightLabelTime("音量 ↑", "a2 b3 a4"));
+                    commandHandler.ProcessData("A2B3A4");
                     break;
 
                 case "volume_down":
-                    OverlayForm.MainForm.Invoke(() => OverlayForm.MainForm.ShowTopRightLabelTime("音量 ↓", "a2 b4 a4"));
+                    // OverlayForm.MainForm.Invoke(() => OverlayForm.MainForm.ShowTopRightLabelTime("音量 ↓", "a2 b4 a4"));
+                    commandHandler.ProcessData("A2B4A4");                    
                     break;
 
                 case "mic_up":
-                    OverlayForm.MainForm.Invoke(() => OverlayForm.MainForm.ShowTopRightLabelTime("麥克風 ↑", "a2 b5 a4"));
+                    // OverlayForm.MainForm.Invoke(() => OverlayForm.MainForm.ShowTopRightLabelTime("麥克風 ↑", "a2 b5 a4"));
+                    commandHandler.ProcessData("A2B5A4");                     
                     break;
 
                 case "mic_down":
-                    OverlayForm.MainForm.Invoke(() => OverlayForm.MainForm.ShowTopRightLabelTime("麥克風 ↓", "a2 b6 a4"));
+                    // OverlayForm.MainForm.Invoke(() => OverlayForm.MainForm.ShowTopRightLabelTime("麥克風 ↓", "a2 b6 a4"));
+                    commandHandler.ProcessData("A2B6A4");                       
                     break;
 
                 case "mute":
-                    ToggleMute();
+                    // ToggleMute();
+                    commandHandler.ProcessData("A276A4"); 
                     break;
 
                 case "original_song":
-                    PrimaryForm.Instance.Invoke(() => PrimaryForm.Instance.videoPlayerForm.ToggleVocalRemoval());
+                    // PrimaryForm.Instance.Invoke(() => PrimaryForm.Instance.videoPlayerForm.ToggleVocalRemoval());
+                    commandHandler.ProcessData("A26CA4");    
                     break;
 
                 case "service":
-                    OverlayForm.MainForm.Invoke(() => OverlayForm.MainForm.ShowTopRightLabel("服務鈴", "a2 53 a4"));
+                    // OverlayForm.MainForm.Invoke(() => OverlayForm.MainForm.ShowTopRightLabel("服務鈴", "a2 53 a4"));
+                    commandHandler.ProcessData("A266A4");
                     break;
 
                 case "replay":
-                    PrimaryForm.Instance.Invoke(() => PrimaryForm.Instance.videoPlayerForm.ReplayCurrentSong());
+                    // PrimaryForm.Instance.Invoke(() => PrimaryForm.Instance.videoPlayerForm.ReplayCurrentSong());
+                    commandHandler.ProcessData("A269A4");
                     break;
 
                 case "male_key":
-                    SendSerialCommand(new byte[] { 0xA2, 0x7F, 0xA4 }, new byte[] { 0xA2, 0xB2, 0xA4 }, 2);
+                    // SendSerialCommand(new byte[] { 0xA2, 0x7F, 0xA4 }, new byte[] { 0xA2, 0xB2, 0xA4 }, 2);
+                    commandHandler.ProcessData("A27DA4");                    
                     break;
 
                 case "female_key":
-                    SendSerialCommand(new byte[] { 0xA2, 0x7F, 0xA4 }, new byte[] { 0xA2, 0xB1, 0xA4 }, 2);
+                    // SendSerialCommand(new byte[] { 0xA2, 0x7F, 0xA4 }, new byte[] { 0xA2, 0xB1, 0xA4 }, 2);
+                    commandHandler.ProcessData("A281A4");  
                     break;
 
                 case "cut":
-                    PrimaryForm.Instance.Invoke(() => PrimaryForm.Instance.videoPlayerForm.PlayNextSong());
+                    // PrimaryForm.Instance.Invoke(() => PrimaryForm.Instance.videoPlayerForm.PlayNextSong());
+                    commandHandler.ProcessData("A267A4");
                     break;
 
                 case "lower_key":
@@ -181,7 +195,8 @@ namespace DualScreenDemo
                     break;
 
                 case "standard_key":
-                    SendSerialCommand(new byte[] { 0xA2, 0x7F, 0xA4 });
+                    // SendSerialCommand(new byte[] { 0xA2, 0x7F, 0xA4 });
+                    commandHandler.ProcessData("A27FA4");                    
                     break;
 
                 case "raise_key":