This Tool reconstructs only one byte of the fixed two-byte MC identifier at the start of a raw original PlayStation memory card. No checksum byte is recalculated. The candidate must be exactly 128 KiB, have exactly one marker mismatch, retain a valid header checksum after restoring the documented marker, retain all 15 directory-frame checksums, and reopen through the existing strict PS1 parser before a new copy can be downloaded.
Emulator & Retro Tools
PS1 Raw MC Identifier Recovery
Restore exactly one damaged byte in the fixed MC identifier of a standard 128 KiB PS1 card only when the reconstructed card retains its independent header checksum, all 15 directory checksums, and strict parse.
01 / Tool workbench
Use the runtime only when it is actually ready.
The application shell fails closed. An input interface is not enabled merely because a WordPress Tool record exists; the declared engine must be registered in the current build.
Session change summary
No output has been built in this session.
02 / Compatibility
Know the supported input before opening a file.
Compatibility fields are intentionally explicit. Missing values stay unclaimed rather than being filled with generic assumptions.
Accepted extensions
.mcd.mcr.mc.srm.psm.ps.ddf.bin
Platforms
PS1
Supported versions / editions
Standard original PlayStation 128 KiB raw memory-card images accepted by the existing PS1 parser.
Input constraints
Exactly 131,072 bytes; exactly one damaged byte in the fixed MC identifier; reconstructed header checksum must already match without rewriting it; all 15 directory-frame checksums must validate; strict card parser must reopen; only the one identifier byte may change.
Known limitations
No checksum-byte repair, directory-frame reconstruction, block-chain repair, save payload editing, card merge, wrapper conversion, or multi-byte marker repair.
Output / result
A new 128 KiB card copy differing from the selected source at exactly one MC identifier byte.
03 / Instructions
Use a reversible workflow.
File-oriented workflows start with an untouched original. Tool-specific instructions add only details documented for this utility.
- 01Keep the original
Preserve an untouched copy before creating or transforming binary output.
- 02Confirm scope
Match the file size, format, platform, and version to the support information on this page.
- 03Process locally
Use the runtime only when the page reports that its declared engine is loaded.
- 04Validate output
Compare or test the result before replacing any working source file.
Tool-specific steps
Choose a raw PS1 card whose fixed MC identifier has a one-byte defect. Keep the original. Download output only when SaveEditor confirms all existing checksums and strict parse remain valid after the one-byte reconstruction.
04 / Privacy and processing
The processing mode is part of the product contract.
SaveEditor.com should state local processing only when the implementation truly keeps file contents in the browser. Server or hybrid processing must be disclosed just as clearly.
Declared mode
Browser local
Runtime state
Operational
Tool-specific privacy notes
Phase 53 reads only the explicitly selected local memory-card file in the browser. The playstation-recovery-v1 runtime has no fetch, XMLHttpRequest, WebSocket, sendBeacon, FormData upload, server-side save processing, or telemetry path. The permanent 16 MiB per-file ceiling remains in force and the selected source is never modified.
05 / Troubleshooting
When a file is rejected, do not force it.
A rejection can indicate an unsupported size, format, version, platform, or byte sequence. Preserve the original and correct the input instead of bypassing validation.
Re-check the documented input type and browser size limit before retrying.
A generic converter does not imply support for every game-specific container, signing scheme, or serialization format.
Return to the untouched source instead of repeatedly processing a damaged or partially transformed file.
Known Tool issues
A clean marker is not rewritten. Two damaged marker bytes, any bad header/directory checksum, wrong size, or strict parse failure causes fail-closed refusal.
06 / Verification
Support claims should be traceable.
The verification date, method notes, and public references are kept separate from marketing language so compatibility can be reviewed over time.
Last verified2026-08-10
Profileps1-raw-mc-identifier-recovery
Method notes
Verified with deterministic raw-card fixtures, exact one-byte marker defects, source immutability, all-directory-checksum gating, no-checksum-rewrite assertions, strict reopen, negative cases, independent Python reconstruction, and full regression/source-package parity.
07 / FAQ
Questions to answer before editing.
These answers are generated from the Tool record and current runtime state rather than generic compatibility promises.
Is PS1 Raw MC Identifier Recovery ready to use?
The Tool record is verified and declares an operational runtime. The page enables its input controls only when the declared engine module is loaded in the current build.
Does processing stay in the browser?
Yes for this declared mode. The loaded runtime processes the explicit input in the browser; Tool-specific privacy notes describe the exact scope and limits.
Should I keep the original file?
Yes. Keep an untouched source file until any generated output has been validated.
What if my input is rejected?
Use the validation message to correct the base, encoding, width, timezone, byte alignment, or size. The runtime does not guess through invalid input.
Related tools
Continue with the same tool family.
Only index-ready verified records from the same Tool Family are shown here.
Related guides
Read the guidance connected to this tool.
Only reviewed, index-ready Guides that explicitly reference this Tool are included.
Beginner
Backups & Safety
PlayStation 1 Memory Card Image Backup & Identification Guide
A safety-first PlayStation 1 Memory Card Image guide for identifying the intended representation, preserving an untouched source copy, and choosing only a verified compatible Tool.
Beginner
Save File Formats
PlayStation 1 Memory Card Image Integrity & Troubleshooting Guide
A fail-closed PlayStation 1 Memory Card Image troubleshooting guide for distinguishing representation problems from unsupported semantics and for selecting read-only integrity checks before any repair attempt.