Join Date: Jul 2007
Location: Upstate New York
Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 5167 Post(s)
Generally speaking what you're asking about are known as "re-encodes". I think the term "rip" is just confusing what you're asking about because in general to rip means to simply take off the information that's on the disc.
With that said, I'll explain. Typically when you see a movie in a matroska (MKV) container it's a re-encode. The tell tale sign is that it lacks black bars. This is done on purpose as it saves a little bit on the size of the re-encoded video. There's no point to encode that extra information as it never changes. Modern media players will automatically position that letterbox-less video information within the frame appropriately which restores the black bars on a 16/9 AR display. If you do see black bars encoded with the video information there's a 99.9% chance this is what's known as a remux, aka untouched video from the blu-ray. That 0.01% chance is if the encoder is a moron and doesn't know any better to crop out the black bar information when they re-encode the video. In general re-encodes do give slightly worse (and in some cases much worse) video quality compared to the blu-ray or a remux. This is because when re-encoding the video information it can be difficult to retain as much grain and detail from the bluray source, especially if the encoder is a newbie and doesn't really know much about encoding. But the benefit is, if encoded properly, you retain an unnoticeable difference in image quality at a much smaller file size.
With the Panasonic are you zooming or using an anamorphic lens to fill your 2.35:1 screen? If you're zooming you shouldn't have to do anything to fill your screen properly as your media player should still frame that 1920 x 816 video file properly with black bars. If you're using an anamorphic lens you'll still need to do vertical stretch/scaling along with your anamorphic lens. KODI should offer an appropriate scaling mode. If not, you can always use an external media player with KODI. I've done this in the past with MPC-HC and it's worked flawlessly.