The problem is not that the video is in the wrong aspect ratio, which would be fixed with what you suggest :)
Let me clarify with an image:
In red is 4x3 ratio, which is what BSPlayer "sends" to the tv
In blue is the size of the movie
The green dotted lines show the part that is displayed when I use zoom on my tv. Everything below/above those lines is not visible. It doesn't look like much here, but it's a few cm on a tv.
So it would be nice to have an option to do it like this:
In blue the movie, expanded to widescreen (black bars) in green. The black bars is the 4x3 signal that is sent to the tv.
Now, when you zoom, you see the movie in the correct aspect ratio without losing anything of the image.
Get it? :)
@offtopic:
Thanks a lot, can't believe I missed that! :oops: