what I think: Nero is a powerful encoding tool mp4, mpeg, avi, wmv and. For my part I use the mp4 format because I think Nero is very hard on this encoding format you can set the desired size or number of kilobits per second that one wishes for his video.
Avi attention the "no compression" encoding is available for this format (audio / video and. you will need a huge capacity hard disk (better safe than sorry) it also has y'en that of your other I do not have time to test yet.
I made vhs scanning by adding video enhancement effect 50 percent, after encoding I noticed a marked improvement in the image (wonderful): D thanks to the encoding "avchd" (mp4) j 'happens to turn video 1 GB 190 MB without any quality loss! audio encoding / video is nickel (no defect even in the background of the video), you can choose the size of the vidéo.ré-encode a video with another free software .....!
(For me I use FFactory) (sorry nero ^^)
Encoding on a re-encoding affects the quality of the video is also what to say. (Oulala it is pointed out to him the details) that you may want, perfection is improved constantly evolving.