How to modify apsect ratio?

[Blobb_57]

Hi all, does anyone knows how can modify the aspect ratio of an mpg
video? I think I must re-encode it or i am wrong?

 

[ChickenMan]

If its a VCD or a SVCD then yes, it will need re-encoding.

 

[shadoe_phantom]

Ya the master CM knows all, but unless your player can't playback the video, no need to re-encode it or you will lose quality (unless you have original source you can encode from).