3dstool VS TurboBench

For open-source tools, Project CTR includes ctrtool to extract many 3DS formats including CIA, and makerom to build an NCCH, CIA, or CCI file. It's a bit old so I'm not positive it'll work exactly, but there's a guide on extracting a CIA using ctrtool and 3dstool, then rebuilding it using makerom and 3dstool.

You can rip the game to a cia file using GM9, and then on a PC use ctrtool and 3dstool to extract cia contents, extract the romfs from that, and then extract the romfs contents which will have all the game data files. I will warn you though that everything is in special Nintendo formats and it's different in some games. You may or may not be able to convert them to a normal PC audio format with various tools.

I'm still unconvinced about this addition. And I don't even dislike Zstandard.

The main motivation seems to be that while Zstandard is worse than Brotli at the highest level, it's substantially faster than Brotli when data has to be compressed on the fly with a limited computation budget. That might be true, but I'm yet to see any concrete or even anecdotal evidence even in the issue tracker [1] while there exist some benchmarks where both Zstandard and Brotli are fast enough for the web usage even at lower levels [2].

According to their FAQ [3] Meta and Akamai have successfully used Zstandard in their internal network, but my gut feeling is that they never actually tried to optimize Brotli instead. In fact, Meta employs the main author of Zstandard so it would have been easier to tune Zstandard instead of Brotli. While Brotli has some fundamental difference from Zstandard (in particular Brotli doesn't use arithmetic-equivalent coding), no one has concretely demonstrated that difference would prevent Brotli from being fast enough for dynamic contents in my opinion.

[1] https://issues.chromium.org/issues/40196713

[2] https://github.com/powturbo/TurboBench/issues/43

[3] https://docs.google.com/document/d/14dbzMpsYPfkefAJos124uPrl...

libdeflate compress better and has faster decompression than igzip.

See the silesia single core in-memory benchmark here [1] comparing zlib,libdeflate,igzip,...

https://github.com/powturbo/TurboBench/issues/4

- https://github.com/powturbo/TurboBench/issues/43

[1] https://github.com/powturbo/TurboBench

Compressesing your sample file, we get 823 bytes with brotli

Download TurboBench and make your own tests:

[1] - https://github.com/powturbo/TurboBench

- igzip 1,2 is best for very fast networks > 10MB/s

brotli bring little value at decompression for users

[1] https://github.com/powturbo/TurboBench

[1] https://sites.google.com/site/powturbo/home/web-compression

[2] https://encode.su/threads/2333-TurboBench-Back-to-the-future...

Build or download TurboBench [1] executables for linux and windows from releases [2] ans make your own tests comparing oodle,zstd and other compressors.

[1] https://github.com/powturbo/TurboBench

[2] https://github.com/powturbo/TurboBench/releases