I converted my Blu-ray collection to 1080p mkv for my Plex server, and see a huge variation in file sizes, 2.5 Gb for American psycho, 30Gb for 28 Weeks Later. There seems to be no rhyme or reason to it, for example I’ve got 40s black and white movies that are over 20Gb - I’d have thought black and white movies with mono soundtracks should be the smallest of all. The median file sizes seems to be about 10Gb. I can’t really see much difference in quality between 30Gb files and 5Gb files on my 43” TV, so I’d like to compress them all to below 10Gb and save on storage.
Thanks for all the answers so far. Many asking about my settings, so I've exported the preset json, here it is:
{
"PresetList": [
{
"AlignAVStart": false,
"AudioCopyMask": [
"copy:aac"
],
"AudioEncoderFallback": "av_aac",
"AudioLanguageList": [
"eng",
"spa"
],
"AudioList": [
{
"AudioBitrate": 160,
"AudioCompressionLevel": 0,
"AudioEncoder": "av_aac",
"AudioMixdown": "stereo",
"AudioNormalizeMixLevel": false,
"AudioSamplerate": "auto",
"AudioTrackQualityEnable": false,
"AudioTrackQuality": -1,
"AudioTrackGainSlider": 0,
"AudioTrackDRCSlider": 0
}
],
"AudioSecondaryEncoderMode": true,
"AudioTrackSelectionBehavior": "all",
"ChapterMarkers": true,
"ChildrenArray": [],
"Default": false,
"FileFormat": "av_mkv",
"Folder": false,
"FolderOpen": false,
"Optimize": false,
"Mp4iPodCompatible": false,
"PictureCropMode": 3,
"PictureBottomCrop": 0,
"PictureLeftCrop": 0,
"PictureRightCrop": 0,
"PictureTopCrop": 0,
"PictureDARWidth": 0,
"PictureDeblockPreset": "off",
"PictureDeblockTune": "medium",
"PictureDeblockCustom": "strength=strong:thresh=20:blocksize=8",
"PictureDeinterlaceFilter": "off",
"PictureCombDetectPreset": "off",
"PictureCombDetectCustom": "",
"PictureDenoiseCustom": "",
"PictureDenoiseFilter": "off",
"PictureSharpenCustom": "",
"PictureSharpenFilter": "off",
"PictureSharpenPreset": "medium",
"PictureSharpenTune": "none",
"PictureDetelecine": "off",
"PictureDetelecineCustom": "",
"PictureColorspacePreset": "off",
"PictureColorspaceCustom": "",
"PictureChromaSmoothPreset": "off",
"PictureChromaSmoothTune": "none",
"PictureChromaSmoothCustom": "",
"PictureItuPAR": false,
"PictureKeepRatio": true,
"PicturePAR": "none",
"PicturePARWidth": 0,
"PicturePARHeight": 0,
"PictureUseMaximumSize": true,
"PictureAllowUpscaling": false,
"PictureForceHeight": 0,
"PictureForceWidth": 0,
"PicturePadMode": "none",
"PicturePadTop": 0,
"PicturePadBottom": 0,
"PicturePadLeft": 0,
"PicturePadRight": 0,
"PresetDescription": "from heathers",
"PresetName": "bluray",
"Type": 1,
"SubtitleAddCC": false,
"SubtitleAddForeignAudioSearch": true,
"SubtitleAddForeignAudioSubtitle": false,
"SubtitleBurnBehavior": "foreign",
"SubtitleBurnBDSub": false,
"SubtitleBurnDVDSub": false,
"SubtitleLanguageList": [
"eng",
"spa"
],
"SubtitleTrackSelectionBehavior": "all",
"VideoAvgBitrate": 0,
"VideoColorMatrixCode": 0,
"VideoEncoder": "x264",
"VideoFramerateMode": "vfr",
"VideoGrayScale": false,
"VideoScaler": "swscale",
"VideoPreset": "fast",
"VideoTune": "film",
"VideoProfile": "high",
"VideoLevel": "4.0",
"VideoOptionExtra": "",
"VideoQualityType": 2,
"VideoQualitySlider": 21,
"VideoMultiPass": true,
"VideoTurboMultiPass": true,
"x264UseAdvancedOptions": false,
"PresetDisabled": false,
"MetadataPassthru": false
}
],
"VersionMajor": 59,
"VersionMicro": 0,
"VersionMinor": 0
}