How to convert a video from mp4/flv to mpeg/mpg
 

I download videos in mp4 or flv format but I need to convert them to mpeg 1/2/3 so that I can watch them on my special gadget.

I think I need a program.

any suggestion thanks

I run Mint 14 Ubuntu

install ffmpeg
and command is same ffmpeg filename.mp4 filename.flv

there are many flags you can also use in this command.

man ffmpeg

install ffmpeg
and command is same ffmpeg filename.mp4 filename.flv

there are many flags you can also use in this command.

man ffmpeg

Edited

Alternatively
If you want to do this using UI
You can do this with avidemux or kdenlive.

This is a simple syntax. The xxx is extension of the input file. The -sameq will preserve the aspect and quality of the input file.

Ffmpeg is an awesome tool with many variations to converting video files. A google/youtube search with ffmpeg examples and tutorial are available.

Other utilities to try are avconv and melt