add black bars to MKV

[jeprox]

How do I add black bars to MKV movies so it displays correctly on a 16:9 tv when I burn it to disk and play it on my bluray player? For example, I have a movie that is 1280 X 528. I want to add 96 pixels to the top and bottom to make it 1280X 720.

Thanks.

[Baldrick]

You can reconvert with uncropmkv.

[jeprox]

Thanks!