changelog: faststart default + DTS/DTS-HD audio (mp4://)

CHANGELOG.md

@@ -19,13 +19,14 @@
 - **Native MP4 output (`mp4://`)** — a progressive ISO-BMFF muxer
   (`ftyp`+`mdat`+`moov`), so a disc goes straight to a play-everywhere `.mp4` in
   one decrypt pass, no ffmpeg round-trip. Carries HEVC / H.264 video (HDR10 colour
-  via `colr`) and the Dolby audio family (AC-3 → `dac3`, E-AC-3 → `dec3`), with
-  correct sample tables and B-frame composition offsets. It's a **compatibility
-  export, not archival**: MP4 can't hold TrueHD, DTS-HD MA, or bitmap (PGS/VobSub)
-  subtitles, so those are **excluded with a loud, itemized report — never a silent
-  drop** (`mkv://` remains the keep-everything path). Verified byte-for-byte
-  equivalent to `ffmpeg -c copy`: frame-exact video and audio, identical colour and
-  duration, clean decode.
+  via `colr`) and the audio MP4 supports — AC-3 (`dac3`), E-AC-3 (`dec3`), and
+  DTS / DTS-HD (`dtsc`/`dtsh` + `ddts`) — with correct sample tables and B-frame
+  composition offsets. It's a **compatibility export, not archival**: MP4 can't
+  hold TrueHD, LPCM, or bitmap (PGS/VobSub) subtitles, so those are **excluded
+  with a loud, itemized report — never a silent drop** (`mkv://` remains the
+  keep-everything path). Verified byte-for-byte equivalent to `ffmpeg -c copy`:
+  frame-exact video and audio (incl. a real DTS-HD MA 7.1 track, layout-exact),
+  identical colour and duration, clean decode.
 
 - **Five extraction sinks — dissect a title, don't just rip it.** New write-only
   destinations that pull one facet of a title out on its own: