Files that contain the .vro file extension are DVD recorder files. These files contain audio and video recordings that have been created by various DVD recording devices.
The VRO files that are created by these DVD recorders are used to stream recordings of DVD movies on DVD players. When a DVD recorder is used to record audio and video data to a DVD using the DVD-VR format, the .vro extension is given to the video file.
VRO files are associated with an IFO file that contains the scene and timing information for the media that has been saved in the VRO file.
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