diff --git a/src/ks-av1 b/src/ks-av1
index 08249e0..9ad25a3 100755
--- a/src/ks-av1
+++ b/src/ks-av1
@@ -2,12 +2,12 @@
 
 ##################################################
 # ks-av1 (ks-tools) - Convert video to AV1 codec #
-# Date: 02-11-2023                               #
+# Date: 04-01-2025                               #
 # Author: q3aql                                  #
 # Contact: q3aql@duck.com                        #
 ##################################################
 VERSION="8.5"
-M_DATE="021123"
+M_DATE="040125"
 
 # Detect version ffmpeg for old releases
 ffmpeg_version=$(ffmpeg -version 2>&1 | grep version | head -1 | cut -d " " -f 3 | cut -d "." -f 1)
@@ -18,7 +18,7 @@ unset IFS
 if [ -z "${ffmpeg_version}" ] ; then
   video_sync="vsync"
 else
-  if [ ${ffmpeg_version} -lt 5 ] ; then
+  if [ ${ffmpeg_version} -lt 5 ] 2> /dev/null ; then
     video_sync="vsync"
   else
     video_sync="fps_mode"
diff --git a/src/ks-av1s b/src/ks-av1s
index 11fb0ae..a9fee90 100755
--- a/src/ks-av1s
+++ b/src/ks-av1s
@@ -2,12 +2,12 @@
 
 ############################################################
 # ks-av1s (ks-tools) - Convert video to AV1 codec (Series) #
-# Date: 02-11-2023                                         #
+# Date: 04-01-2025                                         #
 # Author: q3aql                                            #
 # Contact: q3aql@duck.com                                  #
 ############################################################
 VERSION="8.5"
-M_DATE="021123"
+M_DATE="040125"
 
 # Detect version ffmpeg for old releases
 ffmpeg_version=$(ffmpeg -version 2>&1 | grep version | head -1 | cut -d " " -f 3 | cut -d "." -f 1)
@@ -18,7 +18,7 @@ unset IFS
 if [ -z "${ffmpeg_version}" ] ; then
   video_sync="vsync"
 else
-  if [ ${ffmpeg_version} -lt 5 ] ; then
+  if [ ${ffmpeg_version} -lt 5 ] 2> /dev/null ; then
     video_sync="vsync"
   else
     video_sync="fps_mode"
diff --git a/src/ks-avi b/src/ks-avi
index 3ebb35a..71de8b5 100755
--- a/src/ks-avi
+++ b/src/ks-avi
@@ -2,12 +2,12 @@
 
 ###############################################################
 # ks-avi (ks-tools) - Convert video to AVI format             #
-# Date: 02-11-2023                                            #
+# Date: 04-01-2025                                            #
 # Author: q3aql                                               #
 # Contact: q3aql@duck.com                                     #
 ###############################################################
 VERSION="8.5"
-M_DATE="021123"
+M_DATE="040125"
 
 # Detect version ffmpeg for old releases
 ffmpeg_version=$(ffmpeg -version 2>&1 | grep version | head -1 | cut -d " " -f 3 | cut -d "." -f 1)
@@ -18,7 +18,7 @@ unset IFS
 if [ -z "${ffmpeg_version}" ] ; then
   video_sync="vsync"
 else
-  if [ ${ffmpeg_version} -lt 5 ] ; then
+  if [ ${ffmpeg_version} -lt 5 ] 2> /dev/null ; then
     video_sync="vsync"
   else
     video_sync="fps_mode"
diff --git a/src/ks-crop b/src/ks-crop
index 3b055c3..ae038f6 100755
--- a/src/ks-crop
+++ b/src/ks-crop
@@ -2,12 +2,12 @@
 
 ###############################################################
 # ks-crop (ks-tools) - Crop or change aspect ratio of a video #
-# Date: 02-11-2023                                            #
+# Date: 04-01-2025                                            #
 # Author: q3aql                                               #
 # Contact: q3aql@duck.com                                     #
 ###############################################################
 VERSION="8.5"
-M_DATE="021123"
+M_DATE="040125"
 
 # Detect version ffmpeg for old releases
 ffmpeg_version=$(ffmpeg -version 2>&1 | grep version | head -1 | cut -d " " -f 3 | cut -d "." -f 1)
@@ -18,7 +18,7 @@ unset IFS
 if [ -z "${ffmpeg_version}" ] ; then
   video_sync="vsync"
 else
-  if [ ${ffmpeg_version} -lt 5 ] ; then
+  if [ ${ffmpeg_version} -lt 5 ] 2> /dev/null ; then
     video_sync="vsync"
   else
     video_sync="fps_mode"
diff --git a/src/ks-mix b/src/ks-mix
index 71ac32a..d19faf7 100755
--- a/src/ks-mix
+++ b/src/ks-mix
@@ -2,12 +2,12 @@
 
 #####################################################################
 # ks-mix (ks-tools) - Extract video/audio and mix video/audio files #
-# Date: 02-11-2023                                                  #
+# Date: 04-01-2025                                                  #
 # Author: q3aql                                                     #
 # Contact: q3aql@duck.com                                           #
 #####################################################################
 VERSION="8.5"
-M_DATE="021123"
+M_DATE="040125"
 
 # Detect version ffmpeg for old releases
 ffmpeg_version=$(ffmpeg -version 2>&1 | grep version | head -1 | cut -d " " -f 3 | cut -d "." -f 1)
@@ -18,7 +18,7 @@ unset IFS
 if [ -z "${ffmpeg_version}" ] ; then
   video_sync="vsync"
 else
-  if [ ${ffmpeg_version} -lt 5 ] ; then
+  if [ ${ffmpeg_version} -lt 5 ] 2> /dev/null ; then
     video_sync="vsync"
   else
     video_sync="fps_mode"
diff --git a/src/ks-mp4 b/src/ks-mp4
index 6caaabb..0b6fc9d 100755
--- a/src/ks-mp4
+++ b/src/ks-mp4
@@ -2,12 +2,12 @@
 
 ###############################################################
 # ks-mp4 (ks-tools) - Convert video to MP4 format             #
-# Date: 02-11-2023                                            #
+# Date: 04-01-2025                                            #
 # Author: q3aql                                               #
 # Contact: q3aql@duck.com                                     #
 ###############################################################
 VERSION="8.5"
-M_DATE="021123"
+M_DATE="040125"
 
 # Detect version ffmpeg for old releases
 ffmpeg_version=$(ffmpeg -version 2>&1 | grep version | head -1 | cut -d " " -f 3 | cut -d "." -f 1)
@@ -18,7 +18,7 @@ unset IFS
 if [ -z "${ffmpeg_version}" ] ; then
   video_sync="vsync"
 else
-  if [ ${ffmpeg_version} -lt 5 ] ; then
+  if [ ${ffmpeg_version} -lt 5 ] 2> /dev/null ; then
     video_sync="vsync"
   else
     video_sync="fps_mode"
diff --git a/src/ks-mp4k b/src/ks-mp4k
index f3e7b8f..7fe9b20 100755
--- a/src/ks-mp4k
+++ b/src/ks-mp4k
@@ -2,12 +2,12 @@
 
 ###############################################################
 # ks-mp4k (ks-tools) - Convert video to MP4 format (4K)       #
-# Date: 02-11-2023                                            #
+# Date: 04-01-2025                                            #
 # Author: q3aql                                               #
 # Contact: q3aql@duck.com                                     #
 ###############################################################
 VERSION="8.5"
-M_DATE="021123"
+M_DATE="040125"
 
 # Detect version ffmpeg for old releases
 ffmpeg_version=$(ffmpeg -version 2>&1 | grep version | head -1 | cut -d " " -f 3 | cut -d "." -f 1)
@@ -18,7 +18,7 @@ unset IFS
 if [ -z "${ffmpeg_version}" ] ; then
   video_sync="vsync"
 else
-  if [ ${ffmpeg_version} -lt 5 ] ; then
+  if [ ${ffmpeg_version} -lt 5 ] 2> /dev/null ; then
     video_sync="vsync"
   else
     video_sync="fps_mode"
diff --git a/src/ks-mp4s b/src/ks-mp4s
index 86d99d8..9d02a18 100755
--- a/src/ks-mp4s
+++ b/src/ks-mp4s
@@ -2,12 +2,12 @@
 
 ###############################################################
 # ks-mp4s (ks-tools) - Convert video to MP4 format (Series)   #
-# Date: 02-11-2023                                            #
+# Date: 04-01-2025                                            #
 # Author: q3aql                                               #
 # Contact: q3aql@duck.com                                     #
 ###############################################################
 VERSION="8.5"
-M_DATE="021123"
+M_DATE="040125"
 
 # Detect version ffmpeg for old releases
 ffmpeg_version=$(ffmpeg -version 2>&1 | grep version | head -1 | cut -d " " -f 3 | cut -d "." -f 1)
@@ -18,7 +18,7 @@ unset IFS
 if [ -z "${ffmpeg_version}" ] ; then
   video_sync="vsync"
 else
-  if [ ${ffmpeg_version} -lt 5 ] ; then
+  if [ ${ffmpeg_version} -lt 5 ] 2> /dev/null ; then
     video_sync="vsync"
   else
     video_sync="fps_mode"