OpenROM v3.0.0

OpenROM v3.0.0 — Universal Retro Gaming Toolkit

OpenROM is a free, open-source, fully offline desktop toolkit for working
with retro game ROM and disc images. No accounts, no telemetry, no internet
required — everything runs locally on your machine.

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✨ What's New in v3.0.0

🎮 Dreamcast Support

• DCP Patch Applier — Apply Dreamcast patch files (.dcp) directly from
  the GUI or CLI, with full xdelta3 delta-patch support
• IP.BIN Editor — Read and modify Dreamcast boot sectors: game title,
  region flags (Japan / USA / Europe), VGA mode, and Shift-JIS encoding
  support for Japanese titles
• GDI Track Inspector — Load and inspect GDI disc image track structure
  in a clean data table

🗂️ ROM Renamer

• Match and rename ROM files against No-Intro and Redump DAT files
• CRC32-based matching with batch folder support
• Streaming XML parser for large DAT files (hundreds of MB) without RAM spikes

🪄 New Format Support

• NKit (.nkit.iso) — Nintendo GameCube / Wii disc images
• WUD / WUX — Wii U disc images
• SSP — Sega Saturn Patcher format support in the ROM Patcher

🛠️ Tools Additions

• CUE Sheet Editor — Create and edit CUE sheets for multi-track disc images
• Queue Manager — Manage and reorder conversion jobs before running them
• Compression Preview — Preview output size estimates before compressing

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🐛 Bug Fixes

• Fixed CHD conversion using cdlz (CD-only codec) for DVD-based disc
  images (PS2, GameCube, Wii, Xbox) — now correctly uses createdvd with
  appropriate codecs
• Fixed Saturn and Sega CD ISOs being routed to createdvd instead of
  createcd
• Fixed save_config silently discarding I/O errors — now returns status
  and logs warnings
• Fixed SyntaxError on Python 3.12+ caused by invalid escape sequence
  in docstring (\O)
• Fixed race condition between convert_batch() and stop() causing the
  Stop button to be ignored between jobs
• Fixed _stop_flag in Compressor not being thread-safe — replaced with
  threading.Event
• Fixed broken DAT files being silently skipped during ROM Renamer scan —
  now surfaces warnings
• Fixed dead code in GB/GBC header detection branch

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🔒 Security

• Zip Slip fix — DCP patch files are now validated against path
  traversal attacks before extraction
• Bundled Linux/macOS binaries now ship with correct executable permissions
  (+x) — fixes Permission denied errors on fresh installs

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⚡ Performance

• ROM Renamer DAT loading now uses streaming iterparse() — no more RAM
  spikes with large No-Intro / Redump XML files
• Sector mode detection in CUE generator now inspects actual sector headers
  instead of relying on file size alone

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🌍 Localization

6 languages supported: English, Arabic, Spanish, French, Japanese,
Portuguese — including the new Dreamcast screen

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📦 Downloads

Platform	File
🪟 Windows (Installer)	OpenROM-v3.0.0-Setup.exe
🪟 Windows (Portable)	OpenROM-v3.0.0_Windows_Portable.zip
🐧 Linux x86_64	OpenROM-v3.0.0_Linux_x86_64.zip
🐧 Linux ARM64	OpenROM-v3.0.0_Linux_arm64.zip
🍎 macOS Apple Silicon	OpenROM-v3.0.0_macOS_arm64.zip
🍎 macOS Intel	OpenROM-v3.0.0_macOS_x86_64.zip

SHA256 checksums are listed under each asset below.

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🔧 CLI Quick Reference

# Detect ROM format
openrom-core --detect game.iso

# Convert to CHD
openrom-core --input game.iso --format CHD

# Batch convert folder
openrom-core --folder /roms/ --format CHD --compression Max

# Apply DCP patch
openrom-core --dcp patch.dcp --disc-dir /disc/ --output /out/

# Read IP.BIN
openrom-core --read-ipbin IP.BIN

# Edit IP.BIN
openrom-core --write-ipbin IP.BIN --region-free --set-vga

# List supported formats
openrom-core --list-formats

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📋 Supported Formats

System	Input	Output
PS1 / Dreamcast / Saturn / Sega CD	BIN/CUE, CHD	CHD (createcd)
PS2 / GameCube / Wii / Xbox	ISO, CHD	CHD (createdvd), CSO, RVZ, XISO
PSP	ISO	CSO
GameCube / Wii	NKit, WUD, WUX	ISO, RVZ
Wii U	WUD, WUX	—
Universal	ZIP, 7Z	ZIP, 7Z

Patch formats: IPS, IPS32, UPS, BPS, PPF, APS, EBP, DPS, xdelta3, SSP, DCP

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OpenROM is licensed under GPL v3.
Built with Python + Flutter by M5 Dev 🇪🇬