For years I have been encoding my blu-rays and DVDs using handbrake ATV3 preset so files were fully compatible with itunes home sharing on ATV3. The sacrifice had been slight loss in video quality, no VOB or PSG subtitle support, and more importantly inability to play DTS or HD audio formats (only AC3 passthrough). Things have changed now. I pretty much only use Plex nowadays which is now even easier on the ATV4 with a dedicated app (no more airplay or tinkering with PlexConnect). The ATV4 can handle the bitrates of blu-ray H.264, and Infuse app can now actually decode and pass on DTS-HD MA as lossless mutlichannel PCM to receiver through ATV4. So I think I'm going to start switching to ripping to MKVs and keeping original video for select movies and encode using high profile handbrake preset for others for space reasons. I will keep DTS-HD track when available and include an AC3 and AAC track to minimize transcoding depending on the device/app I'm watching on. I watch mostly through plex but if I want to enjoy the DTS-HD track I can switch to infuse unless Plex someday supports it. Not really asking a question but sharing my thoughts and wondering if others have changed their ripping/encoding patterns with the ATV4.