Qole, i just respected the ratio of my original video.

I generally prefer having black bands above and under the picture than to crop it and loose a significant part of the image to fill the screen ... For me the reference is the source's ratio, not the screen ...

But it's a matter of taste, i fought a lot with my boyfriend when we had a 82 cm tube TV ... he even used a special mode that stretch the 4:3 picture mainly on the right and left sides ... to fill the screen !!! Soooooo baaaad !!!