Matroska is described as 'The Matroska Multimedia Container is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file' and is a Audio Codec in the video & movies category. There are more than 10 alternatives to Matroska for a variety of platforms, including Windows, Linux, Mac, Android and BSD apps. The best Matroska alternative is FLAC, which is both free and Open Source. Other great apps like Matroska are Vorbis, LAVfilters, Opus and CCCP: Combined Community Codec Pack.
FLAC stands for Free Lossless Audio Codec, an audio format similar to MP3, but lossless, meaning that audio is compressed in FLAC without any loss in quality. This is similar to how Zip works, except with FLAC you will get much better compression because it is designed...
Ogg Vorbis is a fully open, general-purpose compressed audio format for mid to high quality (8kHz-48.0kHz, 16+ bit, polyphonic) audio and music at fixed and variable bitrates from 16 to 128 kbps/channel.
LAV Filters are a set of open-source DirectShow filters, aimed to eventually replace the better part of the playback chain required to play all and any modern media.
Opus is a totally open, royalty-free, highly versatile audio codec. Opus is unmatched for interactive speech and music transmission over the Internet, but also intended for storage and streaming applications.
The CCCP was created to replace the video playback packs provided in favor of a single reliable pack capable of decoding practically anything.
For Windows, this is the best alternative.
Apple Lossless (also known as ALAC) is an audio codec developed by Apple Inc. for lossless data compression of digital music.
WavPack is a completely open audio compression format providing lossless, high-quality lossy, and a unique hybrid compression mode. Although the technology is loosely based on previous versions of WavPack, the new version 4 format has been designed from the ground up to offer...
FLIF is a novel lossless image format which outperforms PNG, lossless WebP, lossless BPG, lossless JPEG2000, and lossless JPEG XR in terms of compression ratio.
Xvid is an open-source research project focusing on video compression and is a collaborative development effort. All code is released under the terms of the GNU GPL license.
Xvid is a video codec. It is not a media or even video container format.
»TAK – [T]om’s lossless [a]udio [k]ompressor / [T]oms verlustfreier [A]udio[k]ompressor – is, as the name already suggests, a lossless audio compressor, similar to FLAC, WavPack and Monkey’s Audio.
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A codec pack contains codecs. It is not a container format for media.