How does one take something that looked perfectly fine as a DVD extra and make it worse?
This happens all the time and is a reason why I sometimes hang onto to otherwise outclassed DVDs. Usually they don’t take the time to convert, re-encode and worry about legacy extras and just shove them on without thought. Thus on a lot of BDs what once looked fine are filled with aliasing, noise, compression artifacts or in the worst case scenario look like low quality youtube uploads which is what happened on some Kino Blu-rays. 9 times out of 10 extras look better on DVD. It’s only the specialty labels that care to rebuild things in 1080p or present them in 1080i upconverts and preserve quality of the original standard def materials-companies like Arrow, Criterion, Indicator, Eureka.