In case anyone doesn't know (and I'm sure it may have been posted, so my apologies if so, just trying to help), Handbrake now supports DTS in M4P containers. Recent builds just added it, so no need for MKV for DTS. I want to thank everyone for your help last year on DVD ripping, Handbrake, differing levels L3-5, learning about containers, and advanced settings in Handbrake, etc. With your help I mastered Handbrake, Subler, etc. and bought a Mac Mini last month to replace my aTV First Gen with a Crystal HD graphics card for 1080P (worked well, but I wanted a full home theatre center). Works amazingly, especially now that Blu-Ray's play on OS X with a new app, Mac Blu-Ray Player. Attached an LG 3D USB Blu-Ray drive to the Mini, most of my Blu-Ray rips play without issue from my NAS but the drive is great. Replaced two Apple TV's (1st and 2nd gen) and an old Sony Blu-Ray player for a small Mac Mini and USB Blu-Ray drive. Fantastic with Plex! Thanks again and hope this info helps some.