The simple resolution you must try to fix VLC does not support UNDF format error is restoring the file which is giving an error during the playback.

Solution 1: Get the Video/Audio File Again Solved: How to Fix VLC Does Not Support UNDF Format? Unavailability of Codecs: When the correct codecs are not available to play the media file, then VLC may throw UNDF format error.Ĭorrupt/Damaged File: When the video or audio file you are playing in VLC is corrupt/damaged, then VLC does not support UNDF format error may pop-up.

Outdated Version of VLC: If you are using an old version of VLC media player to play the file. And, while playing such incompletely downloaded videos or audio files, you may come across VLC does not support UNDF format error. Partially Downloaded File: If the internet connectivity is lost while downloading the file from the internet, then the file will be downloaded incompletely. What Causes VLC Does Not Support UNDF Format Error? VLC does not support UNDF format, the error message indicates that the VLC media player cannot interpret the file which you are trying to play, hence it considers it as Undefined format. UNDF in the above error code stands for “Undefined File Format”. Unfortunately, there is no way for you to fix this.” “VLC does not support the audio or video format “undf”. Among those “VLC does not support UNDF format” is the one which prevents you from playing a video/audio file using VLC player. Even though VLC media player is considered as one of the best players, the error messages it screens annoy the users.

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