For an older film that has some film grain, you may notice it a lot, especially if you like the visual of the grain, for example. As an example, h.264/265 will both start to smooth heavily as you push the bitrate down a lot. You may not notice or care, and watching some of the video is the only way to know for certain. What the content is can also have a large effect on this, both how much degrading happens, and how noticeable it is. There will always be some degrading or even a change to the picture quality if you re-encode to a non-lossy codec (which h.264 and h.265 both are, just like mpeg-2 is). a DVD film encoded losslessly would end up being at least 50GB, depending on the format)ĭon’t want to lose any quality from the already limited format/resolution of DVDįrom a purely technical perspective, you can't with h.264 and h.265. This is an unfortunate but necessary effect as lossless video is incredibly large (e.g. Pretty much any video re-encoding that you do will be lossy, but a lot of the time the loss is small and not very noticeable. Considering the resolution of DVDs, you don't need a massive screen to evaluate the quality, a laptop screen should suffice. If possible, I would always watch the videos, or at least part of the videos, to compare it to the original and see if it's good enough quality for you. This means that the video might have a higher bitrate than would otherwise be required for similar quality.
Re-encoding it into h.264 or better yet h.265 will result in a large reduction in file size with little drop in quality.Īlso when it comes to physical media, the video tends to be encoded in order to take up as much of the space available as is possible, to get the highest possible quality. DVDs utilise MPEG-2 video encoding, which is very old.
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