You will then have a MMedia_Converter directory with two apps: MMedia_Convert and Android_Converter. First download this compressed file and unpack it to your Movies Folder: This is usually described as "fixing levels" or something like that.This is the easiest way to convert video formats using MacOSX command line (any version). Reliable release groups always fix these broken Blurays in their encodes. The issue is well known in the pirate communities as an example. The player on the end is reading the YUV values correctly, but the data has been doubly compressed so it only undoes one round of this. If you get a Bluray like this, or any video with the same issue, the blacks will be bright grays and the whites will be dull (similar to how the author describes limited range YUV). This "doubly compressed" data is embarrassingly common (maybe 5% or so of Blurays have this problem). This happens when for example something is in limited range YUV, and then that data is passed to a converter that treats the data as full range YUV, and compresses it again to fit in limited range YUV. There are Blurays out there that have incorrectly converted YUV values. The author is picking up on something that actually happens, however. So for the overwhelming majority of use cases, you want regular old yuv420p. Players that don't use limited range correctly would be out of spec and couldn't play a single Bluray disc correctly. 709 (used in Blurays and elsewhere) as well as Rec. 709.) In fact, the thought if them not doing this is kind of crazy, as Rec. (It's not exactly rescaling, it's just that a value of 235 IS reference white in Rec. This is usually visible as ugly banding or blocking in dark scenes. Losing 14% of the already-barely-enough 8 bit dynamic range is bad enough, but it also often results in the black range starting at a quite visible grey value because most players don’t rescale the range. > For arcane reasons related to TV broadcast limitations, many video formats restrict the YUV color components to be in the 16.235 or 16.240 range instead of the full 0.255 range. In fact, the following statement from the post is nonsense:
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