Trust me my sources are fine 
because i dont need torrent ^^ else is not important here. Lets say it that way i know the tools (which are not public) to rip it myself (and pay for it)…
But i know a few torrent trackers (yes also the not public ones) which are doing shit with the files because they use auto unrar scripts and sometimes they are messing it up.
I use MakeMKV to rip my DVD/BD/UHD content. Works great and it’s free.
Iam talking about Amazon/Netflix/Itunes, which are not so easy to download (yes you can capture it but iam not talking about that) iam talking about WEB and WEB-DL.
Iam just saying it depends on the content sometimes the encodes are just bad or messed up.
Iam not saying torrent is bad (they are also good group who did a good work) but his “source” is the problem because they rename and doing shit to the files (sadly).
Variable FPS is evil.
I know and only shitty networks are using them like the John Oliver thing 