diff --git a/.idea/.idea.DiscImageChef/.idea/contentModel.xml b/.idea/.idea.DiscImageChef/.idea/contentModel.xml
index 14fc0acec..e0c2c033a 100644
--- a/.idea/.idea.DiscImageChef/.idea/contentModel.xml
+++ b/.idea/.idea.DiscImageChef/.idea/contentModel.xml
@@ -1634,6 +1634,8 @@
           <e p="frmImageVerify.xeto.cs" t="Include" />
           <e p="frmMain.xeto" t="Include" />
           <e p="frmMain.xeto.cs" t="Include" />
+          <e p="frmPrintHex.xeto" t="Include" />
+          <e p="frmPrintHex.xeto.cs" t="Include" />
         </e>
         <e p="Panels" t="Include">
           <e p="pnlDeviceInfo.xeto" t="Include" />
diff --git a/DiscImageChef.Gui/Forms/frmMain.xeto.cs b/DiscImageChef.Gui/Forms/frmMain.xeto.cs
index 02eb1e1db..fde28d91e 100644
--- a/DiscImageChef.Gui/Forms/frmMain.xeto.cs
+++ b/DiscImageChef.Gui/Forms/frmMain.xeto.cs
@@ -184,11 +184,15 @@ namespace DiscImageChef.Gui.Forms
                                         null).Show();
                 };
                 treeImagesMenu.Items.Add(menuItem);
+                menuItem       =  new ButtonMenuItem {Text = "View sectors"};
+                menuItem.Click += (a, b) => { new frmPrintHex(image).Show(); };
+                treeImagesMenu.Items.Add(menuItem);
             }
         }
 
         void CloseAllImages(object sender, EventArgs eventArgs)
         {
+            // TODO
             MessageBox.Show("Not yet implemented");
         }
 
diff --git a/DiscImageChef.Gui/Forms/frmPrintHex.xeto b/DiscImageChef.Gui/Forms/frmPrintHex.xeto
new file mode 100644
index 000000000..a1fb6a8f5
--- /dev/null
+++ b/DiscImageChef.Gui/Forms/frmPrintHex.xeto
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?><!--
+// /***************************************************************************
+// The Disc Image Chef
+// ============================================================================
+//
+// Filename       : frmPrintHex.xeto
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Form to show hexadecimal dumps of sectors.
+//
+// ==[ Description ] ==========================================================
+//
+//     Defines the structure for the print hex GUI window.
+//
+// ==[ License ] ==============================================================
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General public License for more details.
+//
+//     You should have received a copy of the GNU General public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ============================================================================
+// Copyright © 2011-2018 Natalia Portillo
+// ****************************************************************************/
+-->
+<Form xmlns="http://schema.picoe.ca/eto.forms" Title="Sector viewer" ClientSize="600, 450" Padding="10">
+    <StackLayout Orientation="Vertical" HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch">
+        <StackLayout Orientation="Horizontal" HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch">
+            <Label Text="Sector" ID="lblSector"/>
+            <NumericStepper ID="nmuSector" ValueChanged="OnNmuSectorValueChanged"/>
+            <Label Text="of XXXXX" ID="lblSectors"/>
+        </StackLayout>
+        <CheckBox ID="chkLongSector" Text="Show long sector"/>
+        <StackLayoutItem Expand="True">
+            <TextArea ID="txtPrintHex"/>
+        </StackLayoutItem>
+    </StackLayout>
+</Form>
\ No newline at end of file
diff --git a/DiscImageChef.Gui/Forms/frmPrintHex.xeto.cs b/DiscImageChef.Gui/Forms/frmPrintHex.xeto.cs
new file mode 100644
index 000000000..61f0ab819
--- /dev/null
+++ b/DiscImageChef.Gui/Forms/frmPrintHex.xeto.cs
@@ -0,0 +1,85 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : frmPrintHex.xeto.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Form to show hexadecimal dumps of sectors.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Implements hexadecimal sector viewer.
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General public License for more details.
+//
+//     You should have received a copy of the GNU General public License
+//     along with this program.  If not, see ;http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2011-2018 Natalia Portillo
+// ****************************************************************************/
+
+using System;
+using DiscImageChef.CommonTypes.Interfaces;
+using Eto.Forms;
+using Eto.Serialization.Xaml;
+
+namespace DiscImageChef.Gui.Forms
+{
+    // TODO: Decode long sector components
+    // TODO: Panel with string representation of contents
+    public class frmPrintHex : Form
+    {
+        const int   HEX_COLUMNS = 32;
+        IMediaImage inputFormat;
+
+        public frmPrintHex(IMediaImage inputFormat)
+        {
+            this.inputFormat = inputFormat;
+            XamlReader.Load(this);
+        }
+
+        protected override void OnLoad(EventArgs e)
+        {
+            base.OnLoad(e);
+
+            try
+            {
+                inputFormat.ReadSectorLong(0);
+                chkLongSector.Checked = true;
+            }
+            catch { chkLongSector.Visible = false; }
+
+            lblSectors.Text = $"of {inputFormat.Info.Sectors}";
+            nmuSector.Value = 0;
+            OnNmuSectorValueChanged(nmuSector, e);
+        }
+
+        void OnNmuSectorValueChanged(object sender, EventArgs e)
+        {
+            txtPrintHex.Text =
+                PrintHex
+                   .ByteArrayToHexArrayString(chkLongSector.Checked == true ? inputFormat.ReadSectorLong((ulong)nmuSector.Value) : inputFormat.ReadSector((ulong)nmuSector.Value),
+                                              HEX_COLUMNS);
+        }
+
+        #region XAML IDs
+        Label          lblSector;
+        NumericStepper nmuSector;
+        Label          lblSectors;
+        CheckBox       chkLongSector;
+        TextArea       txtPrintHex;
+        #endregion
+    }
+}
\ No newline at end of file
diff --git a/DiscImageChef.Gui/Panels/pnlImageInfo.xeto b/DiscImageChef.Gui/Panels/pnlImageInfo.xeto
index 8784e13c8..e0290ef98 100644
--- a/DiscImageChef.Gui/Panels/pnlImageInfo.xeto
+++ b/DiscImageChef.Gui/Panels/pnlImageInfo.xeto
@@ -118,6 +118,7 @@
                 <Button ID="btnChecksum" Text="Checksum" Click="OnBtnChecksum"/>
                 <Button ID="btnConvert" Text="Convert to..." Click="OnBtnConvert"/>
                 <Button ID="btnCreateSidecar" Text="Create CICM XML sidecar..." Click="OnBtnCreateSidecar"/>
+                <Button ID="btnViewSectors" Text="View sectors" Click="OnBtnViewSectors"/>
             </StackLayout>
         </StackLayoutItem>
     </StackLayout>
diff --git a/DiscImageChef.Gui/Panels/pnlImageInfo.xeto.cs b/DiscImageChef.Gui/Panels/pnlImageInfo.xeto.cs
index e13694c81..c927e79ab 100644
--- a/DiscImageChef.Gui/Panels/pnlImageInfo.xeto.cs
+++ b/DiscImageChef.Gui/Panels/pnlImageInfo.xeto.cs
@@ -61,6 +61,7 @@ namespace DiscImageChef.Gui.Panels
         frmImageEntropy  frmImageEntropy;
         frmImageSidecar  frmImageSidecar;
         frmImageVerify   frmImageVerify;
+        frmPrintHex      frmPrintHex;
         IMediaImage      imageFormat;
         string           imagePath;
 
@@ -859,6 +860,19 @@ namespace DiscImageChef.Gui.Panels
             frmImageSidecar.Show();
         }
 
+        protected void OnBtnViewSectors(object sender, EventArgs e)
+        {
+            if(frmPrintHex != null)
+            {
+                frmPrintHex.Show();
+                return;
+            }
+
+            frmPrintHex        =  new frmPrintHex(imageFormat);
+            frmPrintHex.Closed += (s, ea) => { frmPrintHex = null; };
+            frmPrintHex.Show();
+        }
+
         #region XAML controls
         #pragma warning disable 169
         #pragma warning disable 649
@@ -908,6 +922,7 @@ namespace DiscImageChef.Gui.Panels
         Button       btnVerify;
         Button       btnChecksum;
         Button       btnConvert;
+        Button       btnViewSectors;
         #pragma warning restore 169
         #pragma warning restore 649
         #endregion