# Hardware Validation 002 — Direct Merged `disc_dump.exe` Run

## Source

`Evidence/disc_dump_v4_GDR8050L_Red_Faction_II_direct_validation.txt`

## Executed commands

```powershell
.\bin\unlockdrive.exe e /cycle
.\bin\disc_dump.exe /list
.\bin\disc_dump.exe e
```

The first command only performed a tray cycle. The merged executable was then
invoked directly for enumeration and the complete non-dumping workflow.

## Hardware and media

- drive: `HL-DT-ST DVD-ROM GDR8050L`
- drive letter: `E:`
- volume label: `SEP13011042072`
- title: Red Faction II
- title ID: `0x54510005`
- media ID: `TQ00501A`

## Directly validated behavior

The freshly built merged `disc_dump.exe` successfully performed:

1. optical-drive enumeration;
2. TEST UNIT READY;
3. locked READ CAPACITY showing 6,992 sectors;
4. MODE SENSE page `0x3E`;
5. READ DVD STRUCTURE format `0xC0` with a 1,636-byte response;
6. first challenge/response exchange;
7. second challenge/response exchange;
8. partition-one unlock command;
9. sticky descrambling mode `0x31`;
10. unlocked READ CAPACITY showing 3,431,264 sectors;
11. software eject and tray close;
12. START UNIT after the media transition;
13. a second complete normal authentication sequence;
14. volume refresh;
15. XDFS signature discovery and directory enumeration;
16. extraction of title metadata from the XBE certificate;
17. Xbox dual-layer geometry normalization;
18. presentation of raw-ISO and XISO dump options;
19. clean cancellation with option `0`.

## Validation status

- direct merged executable identity: **validated**
- normal handshake path on real hardware: **validated**
- media-transition reauthentication: **validated**
- XDFS and metadata discovery: **validated**
- option menu and cancellation path: **validated**
- raw dump output: **pending**
- XISO dump output: **pending**
- sidecar/resource output: **pending**
- deliberate failure-path tests: **pending**

## Branch-retirement impact

The executable-attribution gap is closed.

Branch A and Branch B must still remain available until raw/XISO dumping,
sidecars, storage-safety paths, and selected failure modes pass regression.
