Robust presets, free, open-source. Cons: Always re-encodes, which takes time and can slightly lower quality. [1, 2] FFmpeg Lossless Repacking
A known discussion on the Firecore Community forums involves users dealing with specific filenames like img_0391_0.jpg (resolution 4032x3024) and double-extension video files. [6] 4032.mkv.mp4
Best for creating the initial high-quality MKV from physical media. [4] 3. Summary Review: Container Performance MKV (Matroska) : Robust presets, free, open-source
: Rename the file to a standard naming convention (e.g., ShowName.S01E01.mp4 ) to trigger the TheTVDb integration properly rather than relying on manual XML overrides. [6] 2. MKV to MP4: The Conversion Process If "4032" refers to a 4K video ( [6] Best for creating the initial high-quality MKV
: Not supported by some older smart TVs or Apple native players without third-party apps like Infuse. [15] MP4 (MPEG-4) :
: While Infuse is highly praised for its interface and broad format support (HDR10, Dolby Vision), its manual metadata override system can be finicky with non-standard filenames. [7]
: Limited support for certain subtitle types (like PGS) and advanced audio codecs compared to MKV. [2]