diff --git a/ISCamRecorder/MainForm.cs b/ISCamRecorder/MainForm.cs
index 5b60566..ed59347 100644
--- a/ISCamRecorder/MainForm.cs
+++ b/ISCamRecorder/MainForm.cs
@@ -14,6 +14,7 @@
 using NAudio.MediaFoundation;
 using System.Windows.Forms.DataVisualization.Charting;
 using System.Media;
+using System.Windows.Shapes;
 
 namespace ISCamRecorder {
 
@@ -54,7 +55,7 @@
         public STATE State { get; private set; } = STATE.Init;          // ソフトウェアの状態
         public DateTime RecodingTime { get; private set; } = DateTime.Now; // 録画開始時間
         public string RecodingTimeStr { get { return RecodingTime.ToString("yyyyMMdd_HHmmss"); } }  // 録画開始時間文字列
-        public string OutputDir { get { return Path.Combine(Setting.SaveDir , $"rec{RecodingTimeStr}_{TxtSubjectName.Text}_{TxtCounter.Text}"); } } // データ保存フォルダ
+        public string OutputDir { get { return System.IO.Path.Combine(Setting.SaveDir , $"rec{RecodingTimeStr}_{TxtSubjectName.Text}_{TxtCounter.Text}"); } } // データ保存フォルダ
         public bool IsReverseBlood { get; private set; } = false;
 
         /// <summary>
@@ -163,8 +164,12 @@
                     this.UpdateControlState();
                 }
                 if (State == STATE.Recoding) {
-                    var elapse = DateTime.Now - RecodingTime;
-                    LblState.Text = $"録画中 {elapse.TotalSeconds:0}s";
+                    if (RecodingTime < DateTime.Now.AddHours(-1)) {
+                        LblState.Text = $"録画待機";
+                    } else {
+                        var elapse = DateTime.Now - RecodingTime;
+                        LblState.Text = $"録画中 {elapse.TotalSeconds:0}s";
+                    }
                 }
             });
         }
@@ -253,8 +258,7 @@
                 for (var i = 0; i < _Cameras.Count; i++) {
                     if (Setting.RecCameras[i]) _Cameras[i].ChangeSink(true);
                 }
-                RecodingTime = DateTime.Now;
-                Directory.CreateDirectory(OutputDir);
+                RecodingTime = DateTime.Now.AddHours(-24); // 録画開始時間が現在より1時間以上前の時は録画待機を意味する
                 State = STATE.Recoding;
                 this.UpdateControlState();
             });
@@ -277,6 +281,8 @@
             Common.DebugOut("全カメラ準備完了");
 
             // 録画開始
+            RecodingTime = DateTime.Now;
+            Directory.CreateDirectory(OutputDir);
             _Cameras.ForEach(c => c.StartRecoding());
             _Sensor.StartRecoding(TxtSubjectName.Text);
             _Sounds[0].Play();
@@ -334,7 +340,7 @@
             if (State != STATE.Idle) return;
 
             _Sounds[4].Play();
-            var outDir = Path.Combine(Setting.SaveDir, "image");
+            var outDir = System.IO.Path.Combine(Setting.SaveDir, "image");
             Directory.CreateDirectory(outDir);
             this.Invoke((MethodInvoker)delegate {
                 for (var i = 0; i < _Cameras.Count; i++) {