OpenROM v2.7.0

Universal Retro Gaming Toolkit — convert, patch, compress, and manage your ROM collection.

Each download includes:

• OpenROM — Flutter desktop GUI
• openrom-core — headless CLI (used internally by the GUI, also available for scripting)

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## 🆕 What's New in 2.7.0 ### New Platform Detection OpenROM now automatically identifies 4 additional platforms via magic byte detection: - **Sega Saturn** - **Sega CD / Mega-CD** - **PC-Engine CD / TurboGrafx-CD** - **Neo Geo CD** These join the existing detection for PS1, PS2, PSP, Xbox, GameCube, Wii, and Dreamcast — all based on actual header bytes, not file size guessing. ### License OpenROM is now **pure GPL v3** — all traces of the Commons Clause have been removed from the license, source files, and metadata. This makes OpenROM fully OSI-compliant and eligible for Flathub and Linux distribution packaging. --- ## 🔧 Bug Fixes (from v2.6.1) ### Critical — ISO → CHD Wrong Command PS1 and Dreamcast ISOs were incorrectly converted using `chdman createdvd` instead of `chdman createcd`. This produced corrupt or unplayable CHD files. **Now fixed** — the correct command is selected automatically based on platform detection. ### Xbox ISO Detection Xbox ISOs with magic bytes at offset `0x2090000` (alternate layout) were previously misidentified as PS2 or Unknown. **Now fixed** — both offsets are checked via a fast in-memory path and a slow file seek fallback. --- ## 🛡️ Antivirus False Positives In v2.6.1 we migrated `openrom-core` from PyInstaller to **Nuitka**, reducing AV detections from **27/67 → 14/67** on VirusTotal. The remaining 14 detections originate from two bundled third-party tools: - `ecm.exe` — flagged by MaxSecure only (`suspicious.gen` heuristic) - `maxcso.exe` — flagged by Trapmine only (`ml.score` ML heuristic) Both are established open-source tools with clean histories. False positive reports have been submitted to both vendors. See [SECURITY.md](SECURITY.md) for SHA256 checksums of all bundled binaries. > Special thanks to **@r3tr0g4m3r** for reporting the antivirus detection in issue [#17] with full details including SHA256 hash and AV version — exactly the kind of report that helps us improve. 🙏 --- ## 💻 CLI Usage :::bash # Detect file format and platform openrom-core --detect game.iso # Convert a single file openrom-core --input game.iso --format CHD # Batch convert a folder openrom-core --folder /roms/ --format CHD --compression Max # Apply a patch openrom-core --patch game.sfc --patch-file hack.ips # Compress to 7Z openrom-core --compress game.iso --format 7z --level ultra # Remove ROM header openrom-core --remove-header game.smc # List supported formats openrom-core --list-formats --- ## 📦 Supported Formats | Platform | Input | Output | |----------|-------|--------| | PS1 | BIN/CUE, ISO | CHD (`createcd`), ECM | | PS2 | ISO | CHD (`createdvd`), CSO | | PSP | ISO | CSO | | GameCube / Wii | ISO | RVZ, WIA, GCZ | | Xbox | ISO | XISO | | Dreamcast | GDI, BIN/CUE | CHD (`createcd`) | | Sega Saturn | BIN/CUE | CHD | | Sega CD | BIN/CUE | CHD | | Universal | Any ROM | ZIP, 7Z | | Universal | Any ROM | Patch (IPS, BPS, UPS, xdelta3, PPF…) | --- ## ⬇️ Downloads | Platform | File | |----------|------| | 🪟 Windows | `OpenROM-v2.7.0_Windows_Portable.zip` | | 🐧 Linux | `OpenROM-v2.7.0_Linux_x86_64.zip` | | 🍎 macOS Apple Silicon | `OpenROM-v2.7.0_macOS_arm64.zip` | | 🍎 macOS Intel | `OpenROM-v2.7.0_macOS_x86_64.zip` | [](https://sourceforge.net/projects/openrom/files/v2.7.0/) --- ## 🔐 Verification Verify your download against the SHA256 checksums in [SECURITY.md](SECURITY.md). :::bash # Linux / macOS sha256sum OpenROM-v2.7.0_Linux_x86_64.zip # Windows (PowerShell) Get-FileHash OpenROM-v2.7.0_Windows_Portable.zip -Algorithm SHA256 --- *[M5 Dev](https://github.com/M5Devs/OpenROM)*