RVZSharp 1.1.0 Release Notes

RVZSharp 1.1.0 is a feature and correctness release. The public API stays compatible with 1.0.0 (validated at pack time against the published package via PackageValidationBaselineVersion), so upgrading is a drop-in.

dotnet add package RVZSharp

What’s new

Formats & verification

• Legacy writers — CisoWriter, WbfsWriter and TgcWriter complete the container matrix and are exposed as convert -f ciso|wbfs|tgc; all-zero blocks/clusters are stored absent, so scrubbed images shrink.
• Wii verification — DiscVerifier walks every partition’s h0/h1/h2/h3 hash tree plus the TMD/H3 tables and reports per-partition issues (verify --partitions).
• Retail ticket keys — partition keys are decrypted from the ticket with the Wii common key (Dolphin: TicketReader::GetTitleKey), so verify --partitions, extract and RVZ writing work on real encrypted discs; RVZ/WIA inputs prefer the container’s authoritative partition key. WiiVolume.GetTitleKey(ticket) exposes the decryption.
• Extract fixes — tmd.bin/cert.bin/h3.bin are read at their partition-relative offsets, h3.bin is skipped for hashless discs, and partition headers are printed by extract --list.
• WBFS fixes — hd_sector_count is relative to the stream position, and the disc header copy is written at offset 0x200 for tools that identify discs without decoding.
• Zero-group decode — RVZ/WIA partition chunks that are entirely zeroes are decoded back to zeroes instead of rejecting the missing exception lists.

CLI

• --json for convert and verify, - stdin/stdout piping, and rvzsharp completions bash|zsh|fish|powershell. Logs and progress go to stderr, so stdout stays machine-readable.
• convert --verify honors Ctrl+C (exit code 130), writer progress reaches exactly 1.0, and the update check never blocks help runs.
• Extract path safety — -s paths and image file names can no longer escape the output folder; hostile names fail with a format error.

Performance & robustness

• Thread-safe ReadAt with a 16 MiB LRU decoded-unit cache, binary-search area lookup and ArrayPool group reads.
• Parallel group compression and parallel RVZ/WIA full-image decode (--threads, byte-identical output for any thread count); Native AOT/trimming validated.
• IBlobReader.Length, the async API (CopyToAsync/ReadFullyAsync/WriteAsync), split plain ISO (game.part0.iso), BlobStream, DiscInfo, Scrub and path overloads.

CLI downloads (1.1.0 bundles)

The 1.1.0 bundles are framework-dependent single-file executables: install the .NET 10 Runtime once, then unzip and run. They are far smaller than the self-contained 1.0.0 bundles and now cover six runtimes, including macOS:

File	Platform
rvzsharp_v1.1.0_win-x64.zip	Windows 10/11, x64
rvzsharp_v1.1.0_win-arm64.zip	Windows 11, arm64
rvzsharp_v1.1.0_linux-x64.zip	Linux, x64
rvzsharp_v1.1.0_linux-arm64.zip	Linux, arm64
rvzsharp_v1.1.0_osx-x64.zip	macOS, Intel
rvzsharp_v1.1.0_osx-arm64.zip	macOS, Apple Silicon

Each zip holds the RVZSharp executable (RVZSharp.exe on Windows) plus LICENSE, README.md, WhatsNew.md and THIRD-PARTY-NOTICES.md. Verify downloads against SHA256SUMS.txt.

Upgrading from 1.0.0? The 1.0.0 bundles were self-contained; 1.1.0 bundles require the .NET 10 Runtime to be installed.

Trust, verified

• 609 library tests on each of net8.0/net9.0/net10.0 plus 57 CLI tests and a 276-test real-file suite (90 GameCube/Wii RVZ games decoded against their official No-Intro SHA-1s and re-encoded back to the same hash).
• Audited against Dolphin’s implementation and the rvz-1.0.3 Go reference; every divergence pinned by a regression test.

Install & documentation

NuGet	RVZSharp 1.1.0
Docs	the docs/ wiki — format specs, library API, CLI reference
Repository	github.com/purelogiccode/RVZSharp

License

GPL-2.0-or-later — the RVZ/WIA format logic derives from Dolphin, and the library is licensed under the same terms Dolphin uses. All dependencies and third-party components are credited in THIRD-PARTY-NOTICES.md.