The upgraded version of VLC may have added those new codecs. Your VLC app is obsolete and can't read MP4 digital video that uses the recent codecs. Solution one: Update VLC Media Player to the latest version So, when you encounter VLC not playing MP4 on Mac, check the codecs first: Right-click the MP4 video > choose “Get Info” from the list of options > find “Codecs” under “More info” section.įor incompatible codecs, you can try the following solutions. According to, VLC won’t play MP4 files that have AMR audio (usually from mobile phones). Even if the video codec is compatible, the audio codec may not work with VLC. MP4 is encoded with video codec plus audio codec (e.g. H.265 is not as common H.264 and has limited supply of supported hardware.

The new encoder stores MP4 videos of the same quality while takes up less space (about increased by 25% to 50% better data compression than H.264). But video compression technology goes on, more and more MP4 files begin to use the H.265/HEVC codec. In the past, most MP4 files were encoded with H.264/MPEG-4 AVC. If your VLC won't open MP4 on Mac, go through reasons below and find corresponding solutions to solve the issue. Why VLC Won’t Play MP4 on Mac? How to Fix It?Īlthough an MP4 file is compatible with VLC Media Player, you might fail to play it for one reason or another.

Available on OS X 10.10 Yosemite or higher.Convert MP4 to M4V, MOV, AVI, MP3, iPhone, etc.Offer all playback controls like Deinterlace Off, Full Screen, Volume.Regularly add the newest formats regularly.Support a wide array of formats such as MTS/M2TS, H.265/264, VP8/9.Cisdem Video Player Best Free MP4 Player for macOS Monterey

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