diff --git a/source/ChanSort.Api/Utils/DataMapping.cs b/source/ChanSort.Api/Utils/DataMapping.cs
index d30ff79..74f8624 100644
--- a/source/ChanSort.Api/Utils/DataMapping.cs
+++ b/source/ChanSort.Api/Utils/DataMapping.cs
@@ -132,9 +132,17 @@ namespace ChanSort.Api
     public bool GetFlag(string valueKey, int mask, bool defaultValue = false)
     {
       if (mask == 0) return defaultValue;
+
+      bool reverseLogic = false;
+      if (mask < 0)
+      {
+        reverseLogic = true;
+        mask = -mask;
+      }
       var offsets = settings.GetIntList(valueKey);
       if (offsets.Length == 0) return defaultValue;
-      return (this.data[baseOffset + offsets[0]] & mask) == mask;
+      bool isSet = (this.data[baseOffset + offsets[0]] & mask) == mask;
+      return isSet != reverseLogic;
     }
     #endregion
 
@@ -153,10 +161,16 @@ namespace ChanSort.Api
     public void SetFlag(string valueKey, int mask, bool value)
     {
       if (mask == 0) return;
+      bool reverseLogic = false;
+      if (mask < 0)
+      {
+        reverseLogic = true;
+        mask = -mask;
+      }
       var offsets = settings.GetIntList(valueKey);
       foreach (var offset in offsets)
       {
-        if (value)
+        if (value != reverseLogic)
           this.data[baseOffset + offset] |= (byte)mask;
         else
           this.data[baseOffset + offset] &= (byte)~mask;
diff --git a/source/ChanSort.Api/Utils/IniFile.cs b/source/ChanSort.Api/Utils/IniFile.cs
index 91f1697..13e282c 100644
--- a/source/ChanSort.Api/Utils/IniFile.cs
+++ b/source/ChanSort.Api/Utils/IniFile.cs
@@ -93,9 +93,12 @@ namespace ChanSort.Api
       #region ParseNumber()
       private int ParseNumber(string value)
       {
+        int sig = value.StartsWith("-") ? -1 : 1;
+        if (sig < 0)
+          value = value.Substring(1).Trim();
         if (value.ToLower().StartsWith("0x"))
         {
-          try { return Convert.ToInt32(value, 16); }
+          try { return Convert.ToInt32(value, 16) * sig; }
           catch { return 0; }
         }
         int intValue;
diff --git a/source/ChanSort.Loader.Samsung/ChanSort.Loader.Samsung.ini b/source/ChanSort.Loader.Samsung/ChanSort.Loader.Samsung.ini
index c7d4397..1bf5591 100644
--- a/source/ChanSort.Loader.Samsung/ChanSort.Loader.Samsung.ini
+++ b/source/ChanSort.Loader.Samsung/ChanSort.Loader.Samsung.ini
@@ -165,6 +165,8 @@
     maskDeleted = 0x01
     offSignalSource = 10
     offQam = 12
+    offSkip = 13
+    maskSkip = 0x01
     offBandwidth = 14
     offServiceType = 15
     offCodec = 16
@@ -172,7 +174,8 @@
     offVRes = 22
     offEncrypted = 24
     maskEncrypted = 0x01
-    offFrameRate = 25
+    offHidden = 25
+    maskHidden = 0x01
     offSymbolRate = 28
     offLock = 31
     maskLock = 0x01
@@ -201,6 +204,8 @@
     maskDeleted = 0x01
     offSignalSource = 10
     offQam = 12
+    offSkip = 13
+    maskSkip = 0x01
     offBandwidth = 14
     offServiceType = 15
     offCodec = 16
@@ -208,7 +213,8 @@
     offVRes = 22
     offEncrypted = 24
     maskEncrypted = 0x01
-    offFrameRate = 25
+    offHidden = 25
+    maskHidden = 0x01
     offSymbolRate = 28
     offLock = 31
     maskLock = 0x01
diff --git a/source/ChanSort.Loader.Samsung/ScmChannelBase.cs b/source/ChanSort.Loader.Samsung/ScmChannelBase.cs
index 7fc8ef4..6a215a6 100644
--- a/source/ChanSort.Loader.Samsung/ScmChannelBase.cs
+++ b/source/ChanSort.Loader.Samsung/ScmChannelBase.cs
@@ -21,6 +21,8 @@ namespace ChanSort.Loader.Samsung
     private const string _Checksum = "offChecksum";
 
     // DVB
+    private const string _Skip = "Skip";
+    private const string _Hidden = "Hidden";
     private const string _ServiceId = "offServiceId";
     private const string _VideoPid = "offVideoPid";
     private const string _AudioPid = "offAudioPid";
@@ -59,6 +61,8 @@ namespace ChanSort.Loader.Samsung
       this.Name = data.GetString(_Name, data.Settings.GetInt("lenName"));
       this.Favorites = this.ParseRawFavorites();
       this.Lock = data.GetFlag(_Lock);
+      this.Hidden = data.GetFlag(_Hidden);
+      this.Skip = data.GetFlag(_Skip);
       this.Encrypted = data.GetFlag(_Encrypted);
       this.IsDeleted = data.GetFlag(_Deleted, false) || !data.GetFlag(_IsActive, true);
       if (this.IsDeleted)
@@ -144,6 +148,8 @@ namespace ChanSort.Loader.Samsung
       mapping.SetFlag(_Lock, this.Lock);
       mapping.SetFlag(_Deleted, this.NewProgramNr < 0);
       mapping.SetFlag(_IsActive, this.NewProgramNr >= 0);
+      mapping.SetFlag(_Skip, this.Skip);
+      mapping.SetFlag(_Hidden, this.Hidden);
       if (this.Encrypted != null)
         mapping.SetFlag(_Encrypted, this.Encrypted.Value);
       this.UpdateChecksum();
diff --git a/source/ChanSort.Loader.Samsung/ScmSerializer.cs b/source/ChanSort.Loader.Samsung/ScmSerializer.cs
index 8c71699..33cdfc8 100644
--- a/source/ChanSort.Loader.Samsung/ScmSerializer.cs
+++ b/source/ChanSort.Loader.Samsung/ScmSerializer.cs
@@ -3,7 +3,6 @@ using System.IO;
 using System.Reflection;
 using System.Linq;
 using System.Text;
-using System.Windows.Forms;
 using ChanSort.Api;
 using ICSharpCode.SharpZipLib.Zip;
 
diff --git a/source/Information/FileStructures_for_HHD_Hex_Editor_Neo/scm-map-Digital.h b/source/Information/FileStructures_for_HHD_Hex_Editor_Neo/scm-map-Digital.h
index a770814..deaf67b 100644
--- a/source/Information/FileStructures_for_HHD_Hex_Editor_Neo/scm-map-Digital.h
+++ b/source/Information/FileStructures_for_HHD_Hex_Editor_Neo/scm-map-Digital.h
@@ -44,7 +44,7 @@ struct SCM_mapDigital_C_entry
    word ServiceId;
    byte Unknown8[4];
    byte Qam;
-   byte Unknown13;
+   byte Skip;
    byte Bandwidth;
    byte ServiceType;
    byte Codec;
@@ -52,7 +52,7 @@ struct SCM_mapDigital_C_entry
    word HRes;
    word VRes;
    byte Encrypted;
-   byte FrameRate;
+   byte Hidden;
    byte Unknown26[2];
    word SymbolRate;
    byte Unknown30;
@@ -93,7 +93,7 @@ struct SCM_mapDigital_DEF_entry
    byte SignalSource;
    byte SignalType;
    byte Qam;
-   byte Unknown13;
+   byte Skip;
    byte BandwidthIs8MHz;
    byte ServiceType;
    byte Codec;
@@ -101,7 +101,7 @@ struct SCM_mapDigital_DEF_entry
    word HRes;
    word VRes;
    byte Encrypted;
-   byte FrameRate;
+   byte Hidden;
    byte Unknown26[2];
    word SymbolRate;
    byte Unknown30;
diff --git a/source/changelog.md b/source/changelog.md
index 0aa0b8f..b18810c 100644
--- a/source/changelog.md
+++ b/source/changelog.md
@@ -1,6 +1,15 @@
 ChanSort Change Log 
 ===================
 
+2017-10-29
+- Show popup with download link for MS Visual C++ 2010 x86 Redist
+  (this package is needed to open lists with a SQLite file format)
+- Show diagnostic information when no plugin was able to load a file
+- Samsung .zip: improved detection of transponder data
+- Samsung .scm: user defined transponders now have priority
+- Samsung .scm: DVB-T and DVB-C lists now support Skip and Hide flags
+  (DVB-S lists still don't)
+
 2017-06-08
 - added experimental support for Loewe / Hisense 2017 servicelist.db 
   file format