Free online EVO to OGV converter

What the EVO format is

In the video context, EVO is the HD DVD-Video container used for titles copied from HD DVD media. An EVO file commonly contains MPEG-2, VC-1, or H.264 video with audio such as AC-3, E-AC-3, DTS, or Dolby TrueHD, plus timing and presentation data.

You normally encounter EVO files in an HD DVD title's HVDVD_TS directory, often alongside files that represent menus, playlists, and other disc assets. The file is designed for HD DVD playback rather than general-purpose editing, so it may contain multiple video angles, audio tracks, subtitles, or interleaved program sections.

What the OGV format is

OGV is an Ogg container generally used for video encoded with Theora and audio encoded with Vorbis. It is supported by FFmpeg-based applications and some open-source media players, but modern browsers and editing programs often provide better support for MP4 with H.264 or WebM with VP9 or AV1.

OGV is useful when an application specifically requests an Ogg video file, or when an open, royalty-free container and codec combination is required. The conversion does not retain HD DVD menus or disc navigation; it produces a normal playable video file.

How to actually convert EVO to OGV

For a local conversion, FFmpeg is the most controllable option. Install a build that includes the libtheora and libvorbis encoders, open a terminal in the folder containing the source, and inspect the streams first:

ffmpeg -i input.evo

Convert the first video and first audio stream with Theora and Vorbis:

ffmpeg -i input.evo -map 0:v:0 -map 0:a:0 -c:v libtheora -q:v 7 -c:a libvorbis -q:a 5 output.ogv

The -q:v 7 value gives moderate-to-high Theora quality; use approximately 5 for a smaller file or 8 for higher quality. Vorbis quality -q:a 5 is a typical setting. Encoding is required because EVO's original codecs and OGV's usual Theora/Vorbis combination are different.

If the file has several audio tracks, select another stream with a map such as -map 0:a:1. To include all compatible audio tracks, replace the explicit audio map with -map 0:a, although this can create a larger file and may expose compatibility issues in older Ogg players.

You can also use the free converter on 101convert.com without installing software: select the EVO file, choose OGV as the output format, start the conversion, and download the resulting file. Uploading is unsuitable for protected material or files that cannot leave your computer.

Quality, compatibility, and limitations

This is normally a lossy re-encode. The source video is decoded and compressed again with Theora, so increasing the output quality cannot restore detail already lost in the EVO stream. Keep the original EVO file if preservation matters.

FFmpeg may read an unprotected EVO directly, but HD DVD content protected with AACS or other access controls must first be lawfully decrypted; conversion software does not bypass that protection. Damaged, incomplete, or menu-only HD DVD files may also fail because the actual feature video is stored in another EVO or referenced through disc metadata.

Use ffprobe output.ogv to verify the resulting streams and duration. OGV support is narrower than MP4, so test the file in the target player or application before converting a large collection.