You need to convert some video files.
You want to download and convert youtube videos to .avi files.
Just open a terminal and type the following commands: sudo apt-get install youtube-dl ffmpeg and youtube-dl -o example.flv "http://www.youtube.com/watch?v=cdaAWFoWr2c".
Finally to convert the file to .avi type "ffmpeg -i example.flv example.avi".
Note: You have to change the name of the video as you please and the youtube link to the video you want to download
About the Author
Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux in different European countries and different European languages. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform where he is one of the most important contributors and the main developer.