# SACD daemon reconstruction: rebuilding Sony BDP-BX510 sacd_extract_160

> SACD daemon reconstruction rebuilds Sony BDP-BX510's ARM sacd_extract_160 daemon in C. It documents TCP 2002 sector requests and the CPSA ioctl path, and supplies function-diff tools, QEMU device models and differential captures. The author reports 388 of 390 functions equivalent and byte-identical wire behavior in tested cases.

- Type: Case study
- Targets: Binary · Firmware · Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/clintecker/sacd-reconstruct>
- Primary source: <https://github.com/clintecker/sacd-reconstruct/blob/d7ad255f1b1d1d6c951bce04573ff51ae5d25c77/README.md>
- Catalog page: <https://awesomerea.org/resources/sacd-daemon-reconstruction-case/>
- Record JSON: <https://awesomerea.org/resources/sacd-daemon-reconstruction-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/sacd-daemon-reconstruction-case/index.md)

## Requirements & limits

- **Prerequisites:** A dump from the user's own BDP-BX510 for binary comparison; an ARM cross-compiler for building.
- **Limits:** The author reports 388/390 function equivalence in the reconstruction.
- **License:** MIT license for project code.

## Primary sources

1. <https://github.com/clintecker/sacd-reconstruct/blob/d7ad255f1b1d1d6c951bce04573ff51ae5d25c77/README.md>
2. <https://github.com/clintecker/sacd-reconstruct/blob/d7ad255f1b1d1d6c951bce04573ff51ae5d25c77/docs/ARCHITECTURE.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.