diff --git a/WindowsFormsApp01/.vs/WindowsFormsApp01/v16/.suo b/WindowsFormsApp01/.vs/WindowsFormsApp01/v16/.suo
index 11fab08..8b5cfe0 100644
Binary files a/WindowsFormsApp01/.vs/WindowsFormsApp01/v16/.suo and b/WindowsFormsApp01/.vs/WindowsFormsApp01/v16/.suo differ
diff --git a/WindowsFormsApp01/WindowsFormsApp01/Form1.cs b/WindowsFormsApp01/WindowsFormsApp01/Form1.cs
index 0289752..438dc3a 100644
--- a/WindowsFormsApp01/WindowsFormsApp01/Form1.cs
+++ b/WindowsFormsApp01/WindowsFormsApp01/Form1.cs
@@ -183,7 +183,22 @@ namespace WindowsFormsApp01
 
         private void Button4_Click(object sender, EventArgs e)
         {
-            calc.CalcIt();
+            try
+            {
+                calc.CalcIt();
+            }
+            catch (DivideByZeroException)
+            {
+                label4.Text = "Fehler: div by zero";
+            }
+            catch (Exception)
+            {
+
+
+                label4.Text = "Fehler";
+
+
+            }
         }
 
         public void CalcFinished(CalcEventArgs e)
@@ -214,6 +229,7 @@ namespace WindowsFormsApp01
         {
             int res = DateTime.Now.Second;
 
+            res = res / 0;
 
             var e = new CalcEventArgs(res);
             //trigger handler
diff --git a/WindowsFormsApp01/WindowsFormsApp01/bin/Debug/WindowsFormsApp01.exe b/WindowsFormsApp01/WindowsFormsApp01/bin/Debug/WindowsFormsApp01.exe
index c23fdf8..fcd5c41 100644
Binary files a/WindowsFormsApp01/WindowsFormsApp01/bin/Debug/WindowsFormsApp01.exe and b/WindowsFormsApp01/WindowsFormsApp01/bin/Debug/WindowsFormsApp01.exe differ
diff --git a/WindowsFormsApp01/WindowsFormsApp01/bin/Debug/WindowsFormsApp01.pdb b/WindowsFormsApp01/WindowsFormsApp01/bin/Debug/WindowsFormsApp01.pdb
index 91634f0..80e560a 100644
Binary files a/WindowsFormsApp01/WindowsFormsApp01/bin/Debug/WindowsFormsApp01.pdb and b/WindowsFormsApp01/WindowsFormsApp01/bin/Debug/WindowsFormsApp01.pdb differ
diff --git a/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.csprojAssemblyReference.cache b/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.csprojAssemblyReference.cache
index fefe00c..8925826 100644
Binary files a/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.csprojAssemblyReference.cache and b/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.csprojAssemblyReference.cache differ
diff --git a/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.exe b/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.exe
index c23fdf8..fcd5c41 100644
Binary files a/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.exe and b/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.exe differ
diff --git a/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.pdb b/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.pdb
index 91634f0..80e560a 100644
Binary files a/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.pdb and b/WindowsFormsApp01/WindowsFormsApp01/obj/Debug/WindowsFormsApp01.pdb differ
diff --git a/winVCR/VCRlogic/SMtape.cs b/winVCR/VCRlogic/SMtape.cs
index 8df2235..4f4677f 100644
--- a/winVCR/VCRlogic/SMtape.cs
+++ b/winVCR/VCRlogic/SMtape.cs
@@ -12,6 +12,9 @@ public class SMtape
 }
 
 
+
+
+
 public class SMtapeNoTapeIn : SMtape
 {
 }
diff --git a/winVCR/winVCR/Form1.Designer.cs b/winVCR/winVCR/Form1.Designer.cs
index f8b85e0..a7097bb 100644
--- a/winVCR/winVCR/Form1.Designer.cs
+++ b/winVCR/winVCR/Form1.Designer.cs
@@ -31,7 +31,6 @@
             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
             this.pictureBox1 = new System.Windows.Forms.PictureBox();
             this.btnPlay = new System.Windows.Forms.Button();
-            this.Power = new System.Windows.Forms.Button();
             this.Rewind = new System.Windows.Forms.Button();
             this.btnRecord = new System.Windows.Forms.Button();
             this.statusLabel = new System.Windows.Forms.Label();
@@ -57,20 +56,10 @@
             this.btnPlay.Name = "btnPlay";
             this.btnPlay.Size = new System.Drawing.Size(75, 23);
             this.btnPlay.TabIndex = 1;
-            this.btnPlay.Text = "btnPlay";
+            this.btnPlay.Text = "Play/Pause";
             this.btnPlay.UseVisualStyleBackColor = false;
             this.btnPlay.Click += new System.EventHandler(this.BtnPlay_Click);
             // 
-            // Power
-            // 
-            this.Power.Location = new System.Drawing.Point(701, 249);
-            this.Power.Name = "Power";
-            this.Power.Size = new System.Drawing.Size(57, 23);
-            this.Power.TabIndex = 2;
-            this.Power.Text = "Power";
-            this.Power.UseVisualStyleBackColor = true;
-            this.Power.Click += new System.EventHandler(this.Power_Click);
-            // 
             // Rewind
             // 
             this.Rewind.Location = new System.Drawing.Point(586, 159);
@@ -132,7 +121,6 @@
             this.Controls.Add(this.statusLabel);
             this.Controls.Add(this.btnRecord);
             this.Controls.Add(this.Rewind);
-            this.Controls.Add(this.Power);
             this.Controls.Add(this.btnPlay);
             this.Controls.Add(this.pictureBox1);
             this.Name = "Form1";
@@ -148,7 +136,6 @@
 
         private System.Windows.Forms.PictureBox pictureBox1;
         private System.Windows.Forms.Button btnPlay;
-        private System.Windows.Forms.Button Power;
         private System.Windows.Forms.Button Rewind;
         private System.Windows.Forms.Button btnRecord;
         private System.Windows.Forms.Label statusLabel;