diff --git a/src/_h5ai/index.html.jade b/src/_h5ai/index.html.jade
index e09cbed6..9e7f2409 100644
--- a/src/_h5ai/index.html.jade
+++ b/src/_h5ai/index.html.jade
@@ -48,12 +48,14 @@ html.no-js.browser( lang="en" )
 				span.label Use EXIF thumbs
 				span.result ?
 				div.info PHP EXIF extension available
-			li.test( data-id="ffmpeg" )
+			li.test( data-id="moviethumbs" )
 				span.label Movie thumbs
 				span.result ?
 				div.info
 					| Command line program 
 					code ffmpeg
+					|  or 
+					code avconv
 					|  available
 			li.test( data-id="convert" )
 				span.label PDF thumbs
diff --git a/src/_h5ai/server/php/inc/App.php b/src/_h5ai/server/php/inc/App.php
index 79faeafe..040feda0 100644
--- a/src/_h5ai/server/php/inc/App.php
+++ b/src/_h5ai/server/php/inc/App.php
@@ -310,6 +310,7 @@ class App {
 		$zip = @preg_match("/zip(.exe)?$/i", exec_cmd($cmd . " zip")) > 0;
 		$convert = @preg_match("/convert(.exe)?$/i", exec_cmd($cmd . " convert")) > 0;
 		$ffmpeg = @preg_match("/ffmpeg(.exe)?$/i", exec_cmd($cmd . " ffmpeg")) > 0;
+		$avconv = @preg_match("/avconv(.exe)?$/i", exec_cmd($cmd . " avconv")) > 0;
 		$du = @preg_match("/du(.exe)?$/i", exec_cmd($cmd . " du")) > 0;
 
 		return array(
@@ -323,6 +324,8 @@ class App {
 			"zip" => $zip,
 			"convert" => $convert,
 			"ffmpeg" => $ffmpeg,
+			"avconv" => $avconv,
+			"moviethumbs" => $ffmpeg || $avconv,
 			"du" => $du
 		);
 	}
diff --git a/src/_h5ai/server/php/inc/Archive.php b/src/_h5ai/server/php/inc/Archive.php
index 92fd30f0..34d8f9fc 100644
--- a/src/_h5ai/server/php/inc/Archive.php
+++ b/src/_h5ai/server/php/inc/Archive.php
@@ -48,7 +48,7 @@ class Archive {
 		$cmd = str_replace("[DIRS]", count($this->dirs) ? implode(" ", array_map("escapeshellarg", $this->dirs)) : "", $cmd);
 		$cmd = str_replace("[FILES]", count($this->files) ? implode(" ", array_map("escapeshellarg", $this->files)) : "", $cmd);
 		try {
-			passthru($cmd);
+			passthru_cmd($cmd);
 		} catch (Exeption $err) {
 			return 500;
 		}
diff --git a/src/_h5ai/server/php/inc/Thumb.php b/src/_h5ai/server/php/inc/Thumb.php
index 24efe39e..00dad454 100644
--- a/src/_h5ai/server/php/inc/Thumb.php
+++ b/src/_h5ai/server/php/inc/Thumb.php
@@ -3,6 +3,7 @@
 class Thumb {
 
 	private static $FFMPEG_CMD = "ffmpeg -ss 0:01:00 -i [SOURCE] -an -vframes 1 [TARGET]";
+	private static $AVCONV_CMD = "avconv -ss 0:01:00 -i [SOURCE] -an -vframes 1 [TARGET]";
 	private static $CONVERT_CMD = "convert -strip [SOURCE][0] [TARGET]";
 	private static $THUMB_CACHE = "thumbs";
 
@@ -36,6 +37,9 @@ class Thumb {
 			$capture_abs_path = $source_abs_path;
 		} else if ($type === "mov") {
 			$capture_abs_path = $this->capture(Thumb::$FFMPEG_CMD, $source_abs_path);
+			if ($capture_abs_path === null) {
+				$capture_abs_path = $this->capture(Thumb::$AVCONV_CMD, $source_abs_path);
+			}
 		} else if ($type === "doc") {
 			$capture_abs_path = $this->capture(Thumb::$CONVERT_CMD, $source_abs_path);
 		}
diff --git a/src/_h5ai/server/php/inc/util.php b/src/_h5ai/server/php/inc/util.php
index 19c1ca64..e684bf5c 100644
--- a/src/_h5ai/server/php/inc/util.php
+++ b/src/_h5ai/server/php/inc/util.php
@@ -77,8 +77,14 @@ function exec_cmd($cmd) {
 	$lines = array();
 	$rc = null;
 	exec($cmd, $lines, $rc);
+	return implode("\n", $lines);
+}
 
-	return implode('\n', $lines);
+function passthru_cmd($cmd) {
+
+	$rc = null;
+	passthru($cmd, $rc);
+	return $rc;
 }
 
 ?>
\ No newline at end of file