diff --git a/DiscImageChef/Plugins/AppleHFS.cs b/DiscImageChef/Plugins/AppleHFS.cs
index 97448ecef..e7dcdf77a 100644
--- a/DiscImageChef/Plugins/AppleHFS.cs
+++ b/DiscImageChef/Plugins/AppleHFS.cs
@@ -60,6 +60,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             byte[] mdb_sector = imagePlugin.ReadSector(2 + partitionOffset);
             UInt16 drSigWord = BigEndianBitConverter.ToUInt16(mdb_sector, 0);
 
diff --git a/DiscImageChef/Plugins/AppleHFSPlus.cs b/DiscImageChef/Plugins/AppleHFSPlus.cs
index 9f5b31866..c583d6f78 100644
--- a/DiscImageChef/Plugins/AppleHFSPlus.cs
+++ b/DiscImageChef/Plugins/AppleHFSPlus.cs
@@ -59,6 +59,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             UInt16 drSigWord;
             UInt16 xdrStABNt;
             UInt16 drAlBlSt;
diff --git a/DiscImageChef/Plugins/AppleMFS.cs b/DiscImageChef/Plugins/AppleMFS.cs
index 7b1178814..25d239abd 100644
--- a/DiscImageChef/Plugins/AppleMFS.cs
+++ b/DiscImageChef/Plugins/AppleMFS.cs
@@ -59,6 +59,9 @@ namespace DiscImageChef.Plugins
         {
             UInt16 drSigWord;
 
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             byte[] mdb_sector = imagePlugin.ReadSector(2 + partitionOffset);
 
             drSigWord = BigEndianBitConverter.ToUInt16(mdb_sector, 0x000);
diff --git a/DiscImageChef/Plugins/BFS.cs b/DiscImageChef/Plugins/BFS.cs
index fa6aca4f3..e5ec585a8 100644
--- a/DiscImageChef/Plugins/BFS.cs
+++ b/DiscImageChef/Plugins/BFS.cs
@@ -65,6 +65,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             UInt32 magic;
             UInt32 magic_be;
 
diff --git a/DiscImageChef/Plugins/FAT.cs b/DiscImageChef/Plugins/FAT.cs
index bb868f9f3..4c20dfc50 100644
--- a/DiscImageChef/Plugins/FAT.cs
+++ b/DiscImageChef/Plugins/FAT.cs
@@ -54,6 +54,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             byte media_descriptor; // Not present on DOS <= 3, present on TOS but != of first FAT entry
             byte fats_no; // Must be 1 or 2. Dunno if it can be 0 in the wild, but it CANNOT BE bigger than 2
             byte[] fat32_signature = new byte[8]; // "FAT32   "
diff --git a/DiscImageChef/Plugins/FFS.cs b/DiscImageChef/Plugins/FFS.cs
index b77a5bcd5..f4fe38677 100644
--- a/DiscImageChef/Plugins/FFS.cs
+++ b/DiscImageChef/Plugins/FFS.cs
@@ -53,6 +53,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             UInt32 magic;
             uint sb_size_in_sectors;
             byte[] ufs_sb_sectors;
diff --git a/DiscImageChef/Plugins/HPFS.cs b/DiscImageChef/Plugins/HPFS.cs
index 0714d4331..c13e22679 100644
--- a/DiscImageChef/Plugins/HPFS.cs
+++ b/DiscImageChef/Plugins/HPFS.cs
@@ -54,6 +54,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             UInt32 magic1, magic2;
 			
             byte[] hpfs_sb_sector = imagePlugin.ReadSector(16 + partitionOffset); // Seek to superblock, on logical sector 16
diff --git a/DiscImageChef/Plugins/MinixFS.cs b/DiscImageChef/Plugins/MinixFS.cs
index 10993acd7..aeb96f9f2 100644
--- a/DiscImageChef/Plugins/MinixFS.cs
+++ b/DiscImageChef/Plugins/MinixFS.cs
@@ -75,6 +75,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             UInt16 magic;
             byte[] minix_sb_sector = imagePlugin.ReadSector(2 + partitionOffset);
 
diff --git a/DiscImageChef/Plugins/NTFS.cs b/DiscImageChef/Plugins/NTFS.cs
index eafb0acaf..be83a2776 100644
--- a/DiscImageChef/Plugins/NTFS.cs
+++ b/DiscImageChef/Plugins/NTFS.cs
@@ -53,6 +53,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             byte[] eigth_bytes = new byte[8];
             byte signature1, fats_no;
             UInt16 spfat, signature2;
diff --git a/DiscImageChef/Plugins/ODS.cs b/DiscImageChef/Plugins/ODS.cs
index 155b6b167..c5d337179 100644
--- a/DiscImageChef/Plugins/ODS.cs
+++ b/DiscImageChef/Plugins/ODS.cs
@@ -60,6 +60,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             if (imagePlugin.GetSectorSize() < 512)
                 return false;
 
diff --git a/DiscImageChef/Plugins/Opera.cs b/DiscImageChef/Plugins/Opera.cs
index 9c799eb4b..8dff8fc16 100644
--- a/DiscImageChef/Plugins/Opera.cs
+++ b/DiscImageChef/Plugins/Opera.cs
@@ -53,6 +53,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             byte[] sb_sector = imagePlugin.ReadSector(0 + partitionOffset);
 
             byte record_type;
diff --git a/DiscImageChef/Plugins/PCEngine.cs b/DiscImageChef/Plugins/PCEngine.cs
index a096bcb30..56ef54d83 100644
--- a/DiscImageChef/Plugins/PCEngine.cs
+++ b/DiscImageChef/Plugins/PCEngine.cs
@@ -52,6 +52,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             byte[] system_descriptor = new byte[23];
             byte[] sector = imagePlugin.ReadSector(1 + partitionOffset);
 
diff --git a/DiscImageChef/Plugins/SolarFS.cs b/DiscImageChef/Plugins/SolarFS.cs
index 2b0af3c2b..96b38ee5c 100644
--- a/DiscImageChef/Plugins/SolarFS.cs
+++ b/DiscImageChef/Plugins/SolarFS.cs
@@ -53,6 +53,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             byte signature; // 0x29
             string fs_type; // "SOL_FS  "
 
diff --git a/DiscImageChef/Plugins/SysV.cs b/DiscImageChef/Plugins/SysV.cs
index b0901e948..81647bafd 100644
--- a/DiscImageChef/Plugins/SysV.cs
+++ b/DiscImageChef/Plugins/SysV.cs
@@ -68,6 +68,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             UInt32 magic;
             string s_fname, s_fpack;
             UInt16 s_nfree, s_ninode;
diff --git a/DiscImageChef/Plugins/UNIXBFS.cs b/DiscImageChef/Plugins/UNIXBFS.cs
index 54dd19e86..cb93aa1d5 100644
--- a/DiscImageChef/Plugins/UNIXBFS.cs
+++ b/DiscImageChef/Plugins/UNIXBFS.cs
@@ -55,6 +55,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             UInt32 magic;
 
             magic = BitConverter.ToUInt32(imagePlugin.ReadSector(0 + partitionOffset), 0);
diff --git a/DiscImageChef/Plugins/ext2FS.cs b/DiscImageChef/Plugins/ext2FS.cs
index 1cf6aa5ae..0a209ed99 100644
--- a/DiscImageChef/Plugins/ext2FS.cs
+++ b/DiscImageChef/Plugins/ext2FS.cs
@@ -53,6 +53,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             byte[] sb_sector = imagePlugin.ReadSector(2 + partitionOffset);
 
             UInt16 magic = BitConverter.ToUInt16(sb_sector, 0x038);
diff --git a/DiscImageChef/Plugins/extFS.cs b/DiscImageChef/Plugins/extFS.cs
index a4e58b795..fd182b579 100644
--- a/DiscImageChef/Plugins/extFS.cs
+++ b/DiscImageChef/Plugins/extFS.cs
@@ -53,6 +53,9 @@ namespace DiscImageChef.Plugins
 
         public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
         {
+            if ((2 + partitionOffset) >= imagePlugin.GetSectors())
+                return false;
+
             byte[] sb_sector = imagePlugin.ReadSector(2 + partitionOffset); // Superblock resides at 0x400
 
             UInt16 magic = BitConverter.ToUInt16(sb_sector, 0x038); // Here should reside magic number