How to calculate resize dimensions

[manolito]

Originally Posted by manono

I'm not sure why you're so adamant about this.

Because I do not like when someone tries to destroy my belief system...

From an old manono post at VideoHelp:

As you well know, although anamorphic originally referred to anamorphic lenses and film, it means something quite different in the DVD world. For all intents and purposes, a movie on DVD encoded as 16:9 is an anamorphic DVD.

From the same thread by AlanHK:

Others have explained the original meaning of anamorphic, the kind of lenses used when shooting it.

For DVDs it usually means a widescreen (16:9 and others) aspect ratio distorted to fill a 4:3 frame. The 16:9 flag in the file tells the player to add letterboxing as appropriate, depending on the kind of TV you have. So a 4:3 movie is encoded full-frame, and marked 4:3, naturally.

I will stick to my definition of an anamorphic DVD. I do not subscribe to the definition that all DVDs are anamorpic by design or standards.