Free online VRO to MTS converter

DVD recorders save video in VRO, while many editing programs, cameras, and playback devices expect MTS. Converting the file changes the DVD-VR recording into an MPEG transport stream that is easier to use with AVCHD-compatible software and hardware.

What the VRO format is

VRO is a video container used by DVD-VR recorders, especially DVD-RAM and DVD-RW devices from manufacturers such as Panasonic, Sony, and Toshiba. It normally contains MPEG-2 video with MPEG-1 Layer II or Dolby Digital audio.

A DVD-VR disc may store one or more .VRO files in its VIDEO_RTAV directory. The associated .IFO file contains title, chapter, and playback-navigation information. Copying only the VRO file can therefore omit the original disc structure, although the video stream is usually still readable.

What the MTS format is

MTS is an MPEG transport stream file commonly associated with AVCHD camcorders and Blu-ray-compatible workflows. It typically contains H.264/AVC video and Dolby Digital audio, although the .mts extension alone does not guarantee a specific codec combination.

MTS supports transport-stream features such as timestamps and multiple elementary streams. It is useful when a video editor, camera workflow, or hardware player specifically requires AVCHD-style transport-stream media. Because VRO generally contains MPEG-2 program-stream video, producing a broadly compatible MTS file usually requires video re-encoding rather than simply changing the extension.

How to actually convert VRO to MTS

Using FFmpeg

FFmpeg can read most unencrypted DVD-VR VRO files and create an H.264/AC-3 transport stream:

ffmpeg -i input.VRO -map 0:v:0 -map 0:a:0? -c:v libx264 -preset medium -crf 18 -pix_fmt yuv420p -c:a ac3 -b:a 192k -f mpegts output.mts

Replace input.VRO with the source filename and output.mts with the desired output path. The -crf 18 setting gives high visual quality; use a higher value such as 21–24 for a smaller file. The command selects the first video and audio streams, encodes video as H.264, encodes audio as AC-3, and writes an MPEG transport stream.

To inspect the source before converting, run:

ffprobe input.VRO

If the VRO contains several recordings, use ffmpeg -i input.VRO to list detected streams, then adjust -map to select the required title or audio track. Some DVD-VR recordings expose titles through the disc's IFO navigation rather than as separately addressable files; in that case, extract the desired title with DVD-VR-aware software first, then convert the resulting video.

Using the online converter

You can convert the file on 101convert.com for free without installing software: choose the VRO file, select MTS as the output format when available, start the conversion, and download the resulting file. Uploading is unsuitable for recordings that contain private or copyrighted material you cannot share with a third-party service.

Quality, compatibility, and limitations

Re-encoding MPEG-2 as H.264 cannot restore detail already lost in the DVD recording; it can reduce the file size, but repeated conversions cause additional quality loss. Keep the original VRO files as the archival masters.

DVD-VR video is commonly interlaced at 720×480 pixels for NTSC or 720×576 pixels for PAL. Preserve interlacing for workflows that support it; use a deinterlacing filter such as -vf bwdif only when the destination expects progressive video. DVD-VR discs may also contain copy-protected or damaged recordings that FFmpeg cannot decode.

A file can have an .mts extension while still failing in a particular application if its codecs, resolution, frame rate, or audio format do not meet that application's AVCHD profile. If compatibility is the priority, H.264 video, AC-3 audio, and yuv420p pixel format are safer choices than copying the original MPEG-2 streams into a transport stream.