[QUOTE=Whappo;2550499]No way should you reinstall Windows for this. I’m not real familiar with Mkvmerge, but are you setting the aspect ration to 16:9? As far as I know Mkvmerge assigns the aspect ration to the CONTAINER, not the video stream, but I could be wrong.[/QUOTE]
mkv has setting for 16:9 4:3 and you can go custom ratios also.
convertx has altering ratio capabilities also, but gives choices that include adding bars and keeping container ratio or cropping or stretching in some degree. i did not try the cropping settings as i have no wish to alter the viewing. I’d just like for it to display wide screen letterbox with the black bars as it did other times.
i just did another mkv file and it converted ratio’s and added bars as normal.
very odd to me that these 2 very recent created files will not allow alterating with mkvmerge or convertx
only thing i can rason is some new sort of coding that mkvmerge hasn’t been coded to work with. other than that i have little reasoning power.
thanks for the answer attempt