re(media): the disc ships movies in TWO audio profiles, and 28 of them are 5.1

Probed all 97 movies. 28 are wmapro 48 kHz 6-channel 5.1 -- ADV.wmv and every
S*.wmv story cutscene; the other 69 are wmav2 48 kHz stereo, every RT*.wmv and
hokyu_*.wmv. The split is cinematics vs in-mission radio chatter.

Both movies the menu milestone needs, ADV.wmv (the boot/attract intro) and
S00A.wmv (the new-game intro), are in the SURROUND group.

Why it matters: one ffmpeg command over dat/movie/ produces two different kinds
of result and records neither. The 69 stereo files pass through unchanged; the 28
surround files get downmixed 5.1 -> stereo by ffmpeg's DEFAULT matrix, folding
centre-channel dialogue into L/R at a weighting nobody chose and which is not
stable across ffmpeg versions. That is a content decision inherited by accident,
so it should be stated explicitly and recorded beside the command.

Credit where due: found by the human while checking a transcode, verified
independently here and widened from one file to the whole disc.

Two METHOD entries from the same episode, both about measurement rather than
format: don't probe a file another process is still writing (a half-written
transcode reported 33 s against a 137 s source, no error, nearly a filed bug),
and a difference-signal RMS is meaningless before cross-correlation alignment
(-34.2 dB against a -25.3 dB source looks like failure and is inconclusive).

docs/re/data/movie-audio-layouts.csv

@@ -0,0 +1,97 @@
+ADV.wmv,wmapro,48000,6,5.1
+RT01A.wmv,wmav2,48000,2,unknown
+RT01B.wmv,wmav2,48000,2,unknown
+RT01C_1.wmv,wmav2,48000,2,unknown
+RT01C_2.wmv,wmav2,48000,2,unknown
+RT02A.wmv,wmav2,48000,2,unknown
+RT02B.wmv,wmav2,48000,2,unknown
+RT02C.wmv,wmav2,48000,2,unknown
+RT02D_1.wmv,wmav2,48000,2,unknown
+RT02D_2.wmv,wmav2,48000,2,unknown
+RT03A.wmv,wmav2,48000,2,unknown
+RT03B.wmv,wmav2,48000,2,unknown
+RT03C.wmv,wmav2,48000,2,unknown
+RT03D.wmv,wmav2,48000,2,unknown
+RT04A.wmv,wmav2,48000,2,unknown
+RT04B.wmv,wmav2,48000,2,unknown
+RT05A.wmv,wmav2,48000,2,unknown
+RT05B.wmv,wmav2,48000,2,unknown
+RT05C.wmv,wmav2,48000,2,unknown
+RT06A.wmv,wmav2,48000,2,unknown
+RT06B.wmv,wmav2,48000,2,unknown
+RT06C.wmv,wmav2,48000,2,unknown
+RT06D.wmv,wmav2,48000,2,unknown
+RT07A.wmv,wmav2,48000,2,unknown
+RT07B.wmv,wmav2,48000,2,unknown
+RT07C.wmv,wmav2,48000,2,unknown
+RT08A.wmv,wmav2,48000,2,unknown
+RT08B.wmv,wmav2,48000,2,unknown
+RT08C.wmv,wmav2,48000,2,unknown
+RT09A.wmv,wmav2,48000,2,unknown
+RT09B.wmv,wmav2,48000,2,unknown
+RT09C.wmv,wmav2,48000,2,unknown
+RT09D.wmv,wmav2,48000,2,unknown
+RT10A.wmv,wmav2,48000,2,unknown
+RT10B.wmv,wmav2,48000,2,unknown
+RT11A.wmv,wmav2,48000,2,unknown
+RT11B.wmv,wmav2,48000,2,unknown
+RT11C.wmv,wmav2,48000,2,unknown
+RT12A.wmv,wmav2,48000,2,unknown
+RT12B_1.wmv,wmav2,48000,2,unknown
+RT12B_2.wmv,wmav2,48000,2,unknown
+RT13A.wmv,wmav2,48000,2,unknown
+RT13B_1.wmv,wmav2,48000,2,unknown
+RT13B_2.wmv,wmav2,48000,2,unknown
+RT14A.wmv,wmav2,48000,2,unknown
+RT14B.wmv,wmav2,48000,2,unknown
+RT14C.wmv,wmav2,48000,2,unknown
+RT15A.wmv,wmav2,48000,2,unknown
+RT15B.wmv,wmav2,48000,2,unknown
+RT15C.wmv,wmav2,48000,2,unknown
+RT16C.wmv,wmav2,48000,2,unknown
+S00A.wmv,wmapro,48000,6,5.1
+S01A.wmv,wmapro,48000,6,5.1
+S02A.wmv,wmapro,48000,6,5.1
+S02B.wmv,wmapro,48000,6,5.1
+S02C.wmv,wmapro,48000,6,5.1
+S03A.wmv,wmapro,48000,6,5.1
+S04A.wmv,wmapro,48000,6,5.1
+S04B.wmv,wmapro,48000,6,5.1
+S05A.wmv,wmapro,48000,6,5.1
+S06A.wmv,wmapro,48000,6,5.1
+S06B.wmv,wmapro,48000,6,5.1
+S07A.wmv,wmapro,48000,6,5.1
+S07B.wmv,wmapro,48000,6,5.1
+S09B.wmv,wmapro,48000,6,5.1
+S10B.wmv,wmapro,48000,6,5.1
+S11A.wmv,wmapro,48000,6,5.1
+S11C.wmv,wmapro,48000,6,5.1
+S12A.wmv,wmapro,48000,6,5.1
+S12B.wmv,wmapro,48000,6,5.1
+S12C.wmv,wmapro,48000,6,5.1
+S13A.wmv,wmapro,48000,6,5.1
+S13B.wmv,wmapro,48000,6,5.1
+S14A.wmv,wmapro,48000,6,5.1
+S15A.wmv,wmapro,48000,6,5.1
+S15B.wmv,wmapro,48000,6,5.1
+S15C.wmv,wmapro,48000,6,5.1
+S16A.wmv,wmapro,48000,6,5.1
+hokyu_DS_s02A.wmv,wmav2,48000,2,unknown
+hokyu_DS_s07A.wmv,wmav2,48000,2,unknown
+hokyu_DS_s07H.wmv,wmav2,48000,2,unknown
+hokyu_DS_s08A.wmv,wmav2,48000,2,unknown
+hokyu_DS_s13A.wmv,wmav2,48000,2,unknown
+hokyu_DS_s14H.wmv,wmav2,48000,2,unknown
+hokyu_LS_s02A.wmv,wmav2,48000,2,unknown
+hokyu_LS_s02H.wmv,wmav2,48000,2,unknown
+hokyu_LS_s03A.wmv,wmav2,48000,2,unknown
+hokyu_LS_s03H.wmv,wmav2,48000,2,unknown
+hokyu_LS_s06A.wmv,wmav2,48000,2,unknown
+hokyu_LS_s06H.wmv,wmav2,48000,2,unknown
+hokyu_LS_s09A.wmv,wmav2,48000,2,unknown
+hokyu_LS_s09H.wmv,wmav2,48000,2,unknown
+hokyu_LS_s11A.wmv,wmav2,48000,2,unknown
+hokyu_LS_s14A.wmv,wmav2,48000,2,unknown
+hokyu_LS_s15A.wmv,wmav2,48000,2,unknown
+hokyu_LS_s24A.wmv,wmav2,48000,2,unknown
+hokyu_LS_s27A.wmv,wmav2,48000,2,unknown