UNDF refers to undefined file format, which means the player is unable to define the format or recognize it. Each time when trying to play video file which is not completely downloaded, we’ll receive UNDF format error. And there’s no exception for VLC media player. UNDF format error may also result from corrupted file, some internal issues within the video, or non-availability of appropriate codes required to play.
In all, chances are that you’d face the issue that displaying “No suitable decoder module: VLC does not support the audio or video format “undf”. Unfortunately, there is no way for you to fix this.”
Steps on how to fix UNDF error in VLC player.
Step 1Go to the official website to get the latest version of VLC, which usually rectifies the error shown in the previous versions. If doesn’t work, continue the steps below.
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