diff --git a/README.md b/README.md
index f3e3a5b..b1435ee 100644
--- a/README.md
+++ b/README.md
@@ -2,57 +2,7 @@
 
 ## What does
 
-scripts to convert videos into several portable mp3 players formats through ffmpeg. It creates as result a file with the same name than source but ended in "-p"
-
-## Dependencies
-
-ffmpeg
-
-this code is designed to work over linux.
-
-## Players supported
-
-AVI Format - Shenju 1.8 inch 128x160 players  
-AVI Format - Shenju 2.4 inch 240x320 players  
-AMV Format - Actions 1.8 inch 128x160 players  
-AMV Format - Actions 2.4 inch 240x320 players  
-MP4 Format - Spreadtrum 1.8 inch 128x160 players  
-
-## How to know to the kind of player
-
-Brandless portable mp3 players often dont specify clearly the video format that is supported, to know what type of format is there is available sample videos in the folder test_videos_to_know_format_supported.
-
-## Usage
-
-    $ video2shenju24.sh <video file>
-    $ video2shenju18.sh <video file>
-    $ video2actions24.sh <video file>
-    $ video2actions18.sh <video file>
-    $ video2spreadtrum18.sh <video file>  
-    
-    a file with the same name but ended in -p is created after conversion.
-
-## Examples
-
-    $ video2shenju24.sh video.mp4
-    $ video2shenju18.sh video.mp4
-    $ video2actions24.sh video.mp4
-    $ video2actions18.sh video.mp4
-    $ video2spreadtrum18.sh video.mp4
-
-## Syntax to use another versions of FFmpeg
-
-You can use FFmpeg in Windows/Mac and Android, but these scripts are only for linux versions, if you want to use another versions, you can just use the next syntax of FFmpeg:  
-
-AVI Format - Shenju 1.8 inch:  ffmpeg -i source.mp4 -vf "scale=-2:128, crop=160:128, transpose=2, vflip" -r 16 -acodec pcm_s16le -ac 2 -ar 22050 -pix_fmt yuv420p -c:v mjpeg -q:v 2 dest.avi  
-  
-AVI Format - Shenju 2.4 inch:  ffmpeg -i source.mp4 -vf "scale=-2:240, crop=320:240, transpose=2, vflip" -r 6 -acodec pcm_s16le -ac 2 -ar 22050 -pix_fmt yuv420p -c:v mjpeg -q:v 10 dest.avi  
-  
-AMV Format - Actions 1.8 inch:  ffmpeg -i source.mp4 -vf "scale=-2:128, crop=160:128" -r 14 -pix_fmt yuv420p -c:v amv -c:a adpcm_ima_amv -ac 1 -ar 22050 -block_size 1575 dest.amv  # portable mp3 player - video converter tools
-
-## What does
-
-scripts to convert videos into several portable mp3 players formats through ffmpeg.
+scripts to convert videos into several portable mp3 players formats through ffmpeg. It creates as result a file with the same name than source but ended in "-p".
 
 ## Dependencies
 
@@ -116,15 +66,3 @@ Created by fdd
 Send feedback and questions to fdd4776s@gmail.com  
 Support future improvements of this software https://www.buymeacoffee.com/fdd4s  
 All .sh files are public domain https://unlicense.org/  
-  
-AMV Format - Actions 2.4 inch:  ffmpeg -i source.mp4 -vf "scale=-2:240, crop=320:240" -r 14 -pix_fmt yuv420p -c:v amv -c:a adpcm_ima_amv -ac 1 -ar 22050 -block_size 1575 dest.amv  
-  
-MP4 Format - Spreadtrum 1.8 inch:  ffmpeg -i source.mp4  -vf "scale=-2:128, crop=160:128" -r 14 -pix_fmt yuv420p -c:v libx264 -profile:v baseline -level 1 -c:a aac -b:a 160k dest.mp4  
-
-
-## Credits
-
-Created by fdd  
-Send feedback and questions to fdd4776s@gmail.com  
-Support future improvements of this software https://www.buymeacoffee.com/fdd4s  
-All files are public domain https://unlicense.org/