Question

By accident, I recently removed some videos from my phone. I tried to restoring them with Recuva and TuneUp Utilities and the results were "undf" files.

I tried to open with VLC, Media Player Classic and other video players to no avail. Where/how do I find out the codec for these files?

I would really love to be able to watch these videos again.

Answer 1

The 'undf' codec type for VLC just means that VLC did not recognize the format or, in other words, it is not one of the supported formats.

I would recommend using the GSpot Codec Information Appliance. This utility can identify just about any kind of media to help you find the right codec to play it.

Answer 2

In the VideoLAN forums, they've found this:

Codec: undf
type: tone
channels: 1
Data rate: 22050 kHz
bits per sample: 16
bitrate: 24032 bps
Codec Name: Voxware MetaSound
Codec Description: AC24V1 24 Kbps, 22 kHz, Mono

You'll have to download the Voxware MetaSound codec and run the install yourself.