What´s the best software to convert 4:3 to 16:9? Instant HD or Photozoom Pro? in terms of image quality. Or perhaps another software or hardware?
Somebody who compared both?
I can highly recommend PhotoZoom Pro 2 as it offers the best interpolation (resizing/enlarging) algorithm.
It doesn't natively support movie / video files yet, but in terms of image quality it's indisputably the best in this area (as the developer of this product I'm of couse somewhat biased but you can see this confirmed by many 3rd party reviews, tests and comparisons).