XDVD media profile output
=========================

Option 1 (full raw ISO) now writes an additional media profile JSON alongside the
existing emulator sidecar files.

For a dump named:

  Red Faction II[TQ00501A].iso

option 1 writes:

  Red Faction II[TQ00501A].media.json     media/layout profile, format xdvd-media-profile
  Red Faction II[TQ00501A].xdvd.json      legacy command-replay sidecar
  Red Faction II[TQ00501A].ad_c0.bin      READ DVD STRUCTURE AD ... C0 payload
  Red Faction II[TQ00501A].pfi.bin        READ DVD STRUCTURE format 0x00 payload
  Red Faction II[TQ00501A].dmi.bin        READ DVD STRUCTURE format 0x04 payload

The media profile intentionally separates media/image identity from the device
profile. It contains the raw image geometry, visible/video region, game-data
layout, DVD structure payload filenames, observed locked/unlocked responses, and
validation flags.

Option 2 is unchanged and remains the smaller XISO/game-partition dump path.
