diff --git a/doc/ks-avi.md b/doc/ks-avi.md
index d233ea3..207bd0d 100644
--- a/doc/ks-avi.md
+++ b/doc/ks-avi.md
@@ -84,11 +84,10 @@ $ ks-avi </absolute/path/video.mkv> </path/prefix_name>
       ffmpeg -i "Example.mkv" -map 0:5 "Example.srt"
     
       # Convert the file 'Example.mkv' to AVI
-      ffmpeg -i "Example.mkv" -vsync cfr -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 
-      -map 0:0 -map 0:1 -vf subtitles="Example.srt" -s 720x480 -c:v libxvid -b:v 3000k 
-      -preset slow -c:a libmp3lame -b:a 192k -ac 2 -clev 3dB -slev -6dB 
-      -metadata title="Example (2016)" -metadata date="2016" -metadata genre="Thriller" 
-      -metadata:s:v:0 title="Example (2016)" 
+      ffmpeg -i "Example.mkv" -fps_mode cfr -af aresample=async=1 -map 0:0 -map 0:1
+      -vf subtitles="Example.srt" -s 720x480 -c:v libxvid -b:v 3000k -preset slow 
+      -c:a libmp3lame -b:a 192k -ac 2 -clev 3dB -slev -6dB -metadata title="Example (2016)" 
+      -metadata date="2016" -metadata genre="Thriller" -metadata:s:v:0 title="Example (2016)"
       -metadata:s:a:0 title="libmp3lame Stereo Audio (192k)" "Example.avi"
     
      * (Default: y) Do you want run the conversion? (y/n): n
diff --git a/doc/ks-crop.md b/doc/ks-crop.md
index ca08f09..c1bfa85 100644
--- a/doc/ks-crop.md
+++ b/doc/ks-crop.md
@@ -111,8 +111,8 @@ _Note: Output file name will be `Example-aspect.mkv`_
     * COMMAND THAT WILL BE EXECUTED:
 
       # Crop 'Example.mkv' from 16:9 to 4:3 (1.33:1)
-      ffmpeg -i Example.mkv -vsync cfr -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 
-      -map 0:0 -map 0:1 -filter:v "crop=ih/3*4:ih" -s 1920x1440 -c:v libx264 -profile:v high 
+      ffmpeg -i Example.mkv -fps_mode cfr -af aresample=async=1 -map 0:0 -map 0:1
+      -filter:v "crop=ih/3*4:ih" -s 1920x1440 -c:v libx264 -profile:v high 
       -b:v 5000k -preset medium -c:a copy Example-crop.mkv
 
     * (Default: y) Do you want run the conversion? (y/n): n
diff --git a/doc/ks-mp4.md b/doc/ks-mp4.md
index 602957e..d7013d8 100644
--- a/doc/ks-mp4.md
+++ b/doc/ks-mp4.md
@@ -84,8 +84,8 @@ $ ks-mp4 </absolute/path/video.mkv> </path/prefix_name>
       ffmpeg -i "Example.mkv" -map 0:5 "Example.srt"
 
       # Convert the file 'Example.mkv' to MP4
-      ffmpeg -i "Example.mkv" -vsync cfr -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 
-      -map 0:0 -map 0:1 -vf subtitles="Example.srt" -s 1280x534 -c:v libx264 -profile:v high 
+      ffmpeg -i "Example.mkv" -fps_mode cfr -af aresample=async=1 -map 0:0 -map 0:1
+      -vf subtitles="Example.srt" -s 1280x534 -c:v libx264 -profile:v high 
       -b:v 2400k -preset medium -c:a aac -b:a 256k -ac 2 -clev 3dB -slev -6dB 
       -metadata title="Example (2016)" -metadata date="2016" -metadata genre="Thriller" 
       -metadata:s:v:0 title="Example (2016)" 
diff --git a/doc/ks-mp4k.md b/doc/ks-mp4k.md
index f589381..44dbb02 100644
--- a/doc/ks-mp4k.md
+++ b/doc/ks-mp4k.md
@@ -84,8 +84,8 @@ $ ks-mp4k </absolute/path/video.mkv> </path/prefix_name>
       ffmpeg -i "Example.mkv" -map 0:5 "Example.srt"
 
       # Convert the file 'Example.mkv' to MP4
-      ffmpeg -i "Example.mkv" -vsync cfr -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 
-      -map 0:0 -map 0:1 -vf subtitles="Example.srt" -s 3840x2160 -c:v libx264 -profile:v high 
+      ffmpeg -i "Example.mkv" -fps_mode cfr -af aresample=async=1 -map 0:0 -map 0:1 
+      -vf subtitles="Example.srt" -s 3840x2160 -c:v libx264 -profile:v high 
       -b:v 6000k -preset medium -c:a aac -b:a 320k -ac 2 -clev 3dB -slev -6dB 
       -metadata title="Example (2016)" -metadata date="2016" -metadata genre="Thriller" 
       -metadata:s:v:0 title="Example (2016)" 
diff --git a/doc/ks-mp4s.md b/doc/ks-mp4s.md
index eb4148f..2c18c80 100644
--- a/doc/ks-mp4s.md
+++ b/doc/ks-mp4s.md
@@ -15,7 +15,7 @@ $ ks-mp4s </absolute/path/video.mkv> </path/prefix_name>
     - Resolution: 720x480
     - Video codec: libx264
     - Bitrate video: 950k
-    - Preset: medium
+    - Preset: slow
     - Audio codec: aac (stereo)
     - Bitrate audio: 128k
     - Default Audio: spa
@@ -29,7 +29,7 @@ $ ks-mp4s </absolute/path/video.mkv> </path/prefix_name>
     rel_size="720x480"
     vcodec="libx264"
     b_vcodec="950k"
-    v_preset="medium"
+    v_preset="slow"
     acodec="aac"
     b_acodec="128k"
     default_lang_audio="spa"
@@ -84,8 +84,8 @@ $ ks-mp4s </absolute/path/video.mkv> </path/prefix_name>
       ffmpeg -i "Example.mkv" -map 0:5 "Example.srt"
 
       # Convert the file 'Example.mkv' to MP4
-      ffmpeg -i "Example.mkv" -vsync cfr -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 
-      -map 0:0 -map 0:1 -vf subtitles="Example.srt" -s 720x480 -c:v libx264 -profile:v high 
+      ffmpeg -i "Example.mkv" -fps_mode cfr -af aresample=async=1 -map 0:0 -map 0:1 
+      -vf subtitles="Example.srt" -s 720x480 -c:v libx264 -profile:v high 
       -b:v 950k -preset medium -c:a aac -b:a 128k -ac 2 -clev 3dB -slev -6dB 
       -metadata title="Example" -metadata date="2016" -metadata genre="Thriller" 
       -metadata:s:v:0 title="Example"