diff --git a/src/FFMpeg/Exception/InvalidFileArgumentException.php b/src/FFMpeg/Exception/InvalidFileArgumentException.php
new file mode 100644
index 0000000..1be9889
--- /dev/null
+++ b/src/FFMpeg/Exception/InvalidFileArgumentException.php
@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This file is part of PHP-FFmpeg.
+ *
+ * (c) Alchemy <info@alchemy.fr>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FFMpeg\Exception;
+
+class InvalidFileArgumentException extends \InvalidArgumentException
+{
+
+}
diff --git a/src/FFMpeg/Exception/LogicException.php b/src/FFMpeg/Exception/LogicException.php
new file mode 100644
index 0000000..f70b350
--- /dev/null
+++ b/src/FFMpeg/Exception/LogicException.php
@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This file is part of PHP-FFmpeg.
+ *
+ * (c) Alchemy <info@alchemy.fr>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FFMpeg\Exception;
+
+class LogicException extends \LogicException
+{
+
+}
diff --git a/src/FFMpeg/Exception/RuntimeException.php b/src/FFMpeg/Exception/RuntimeException.php
new file mode 100644
index 0000000..d5a9a4a
--- /dev/null
+++ b/src/FFMpeg/Exception/RuntimeException.php
@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This file is part of PHP-FFmpeg.
+ *
+ * (c) Alchemy <info@alchemy.fr>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FFMpeg\Exception;
+
+class RuntimeException extends \RuntimeException
+{
+
+}
diff --git a/src/FFMpeg/FFMpeg.php b/src/FFMpeg/FFMpeg.php
index d4a5a62..6b5cd09 100644
--- a/src/FFMpeg/FFMpeg.php
+++ b/src/FFMpeg/FFMpeg.php
@@ -51,12 +51,13 @@ class FFMpeg extends Binary
      * @param int $height       The height of the image
      * @return boolean          True if success
      * @throws Exception\RuntimeException
+     * @throws Exception\LogicException
      */
     public function extractImage($time, $output, $width, $height)
     {
         if ( ! $this->pathfile)
         {
-            throw new Exception\RuntimeException('No file open');
+            throw new Exception\LogicException('No file open');
         }
 
         $cmd = $this->binary
@@ -99,12 +100,13 @@ class FFMpeg extends Binary
      * @param int $threads                  The number of threads to use
      * @return boolean                      True if success
      * @throws Exception\RuntimeException
+     * @throws Exception\LogicException
      */
     public function encode(Format\AudioFormat $format, $outputPathfile, $threads = 1)
     {
         if ( ! $this->pathfile)
         {
-            throw new Exception\RuntimeException('No file open');
+            throw new Exception\LogicException('No file open');
         }
 
         $threads = max(min($threads, 64), 1);
diff --git a/src/FFMpeg/FFProbe.php b/src/FFMpeg/FFProbe.php
index 3e3389a..bcaf04f 100644
--- a/src/FFMpeg/FFProbe.php
+++ b/src/FFMpeg/FFProbe.php
@@ -27,6 +27,7 @@ class FFProbe extends Binary
      * @param string $pathfile
      * @return string
      * @throws Exception\InvalidFileArgumentException
+     * @throws Exception\RuntimeException
      */
     public function probeFormat($pathfile)
     {
@@ -46,6 +47,7 @@ class FFProbe extends Binary
      * @param string $pathfile
      * @return string
      * @throws Exception\InvalidFileArgumentException
+     * @throws Exception\RuntimeException
      */
     public function probeStreams($pathfile)
     {
@@ -56,14 +58,7 @@ class FFProbe extends Binary
 
         $cmd = $this->binary . ' ' . $pathfile . ' -show_streams';
 
-        try
-        {
-            return $this->executeProbe($cmd);
-        }
-        catch (Exception\RuntimeException $e)
-        {
-
-        }
+        return $this->executeProbe($cmd);
     }
 
     /**