CHDSharp 1.5.2

License file
MIT License

Copyright (c) 2026 Peterson Fernandes and Gordon Jefferyes

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

ATTRIBUTION REQUIREMENT:
Any use of this software, whether in commercial or open source projects,
must include the following attribution in a visible location (such as
documentation, about dialog, or credits page):
- Original developers: Peterson Fernandes (@purelogiccode) and
  Gordon Jefferyes (@gjefferyes)

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

================================================================================
COMBINED-WORK / THIRD-PARTY LICENSE NOTICE
================================================================================

CHDSharp is a combined work. The project code above is distributed under the
MIT License. Several compression codecs are vendored in-repo (pure C#, no
native dependencies) and retain their own licenses, listed below. Each
vendored component's license terms apply to that component and must be
preserved in copies and distributions.

--------------------------------------------------------------------------------
### VendoredZLib  ->  zlib license  (permissive, BSD-style)
Pure C# zlib (deflate/inflate) implementation.
- Managed C#/.NET code: Copyright (c) 2022-2024 Magnus Montin.
- Original zlib: Copyright (c) 1995-2024 Jean-loup Gailly and Mark Adler.
- Source: https://github.com/dotnet/runtime (ported from https://zlib.net/)

  This software is provided 'as-is', without any express or implied warranty.
  In no event will the authors be held liable for any damages arising from the
  use of this software. Permission is granted to anyone to use this software
  for any purpose, including commercial applications, and to alter it and
  redistribute it freely, subject to the following restrictions:
    1. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software in
       a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.

--------------------------------------------------------------------------------
### VendoredLZMA  ->  Public Domain
C# port of the LZMA SDK.
- Copyright (c) 1999-2023 Igor Pavlov. Released into the public domain.
- Source: https://www.7-zip.org/sdk.html
  (The LZMA SDK is placed by its author in the public domain; you may use it
  freely, including to develop closed-source software.)

--------------------------------------------------------------------------------
### VendoredFlac  ->  GNU Lesser General Public License v2.1 (LGPL-2.1)
Pure C# FLAC encoder/decoder, derived from CUETools.Flake and libFLAC.
- CUETools.Flake: Copyright (c) 2009-2023 Grigory Chudov.
- Based on the Flake encoder (http://flake-enc.sourceforge.net/):
  Copyright (c) 2006-2009 Justin Ruggles.
- libFLAC encoder port: based on libFLAC 1.4.3 (BSD/GPL dual license,
  used here under its BSD terms).

  The VendoredFlac component is licensed under the GNU Lesser General Public
  License v2.1 or (at your option) any later version. The full text of the
  LGPL 2.1 is available at:
  https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html

  LGPL 2.1 summary of obligations for this component:
  - You may use, redistribute, and/or modify VendoredFlac under the LGPL.
  - Modified versions of VendoredFlac must remain under the LGPL and carry the
    LGPL notice.
  - If you distribute a binary that statically links VendoredFlac into another
    work (as CHDSharp does), the LGPL permits this provided the recipient can
    relink or reverse-engineer to relink with a modified VendoredFlac. Because
    CHDSharp is distributed with complete corresponding source, recipients may
    rebuild the assembly with a modified VendoredFlac to satisfy this.
  - The complete corresponding source for VendoredFlac is included in this
    repository under the VendoredFlac/ directory.

--------------------------------------------------------------------------------
### VendoredZSTD  ->  MIT License  (based on Facebook zstd, BSD-3-Clause)
Pure C# port of the zstd 1.5.5 source tree (the version MAME 0.288 bundles),
carried as the ZstdSharp 0.7.6 source tree.
- ZstdSharp (C# port): Copyright (c) 2021 Oleg Stepanischev. MIT License.
  Source: https://github.com/oleg-st/ZstdSharp
- Underlying Facebook zstd: Copyright (c) Meta Platforms, Inc. and affiliates.
  BSD-3-Clause. Source: https://github.com/facebook/zstd

  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.

================================================================================
ACKNOWLEDGMENTS (non-license references)
================================================================================
- MAME (https://www.mamedev.org/) - CHD format specification and the chdman
  reference implementation (used as a format reference; no MAME code is bundled).
- libchdr 0.3.0 (Romain Tisseraud, BSD-3-Clause) - C reference library used as
  a format reference.
- RomVault/CHDSharp (Gordon Jefferyes) - original C# CHDSharp implementation
  from which this project is forked.
CHDSharp 1.5.2 License Info

CHDSharp 1.5.2
