I have a lot of clips from my digital video camera, using the DV codec. It’s a raw video codec that is used for most digital cameras when you export video over firewire. It doesn’t look like those videos are supported. Here’s the VLC stream info.
Video
Codec: DV Video (dv )
Resolution: 720x480
Frame rate: 29.970029
Audio
Codec: PCM S16 LE (s16l)
Channels: Stereo
Sample rate: 48000 Hz
Bits per sample: 16
This is pretty typical for DV video.