Your files stay on your Mac.
DVD VOB files bundle video, audio, and subtitle tracks into a single container. Converting to Opus pulls out the audio stream and encodes it as a compact, high-quality Opus file. Everything runs on your Mac — no upload, no cloud service.
Drag one or more .vob files — or an entire VIDEO_TS folder — onto Convertessa.
Choose Opus from the output format list. Because Opus is a lossy format, you can set quality to balance file size against audio fidelity.
Click Convert. Convertessa extracts and encodes the audio on your Mac; the Opus files appear alongside the originals.
Images, audio, video, documents, archives and eBooks — all converted natively, right on your Mac.
Pick a format you have — see everything Convertessa can turn it into.
Convert hundreds of files at once with per-type group defaults and individual overrides.
First-class support for HEIC, AVIF and WebP — encode and decode, both ways. Read JPEG XL and a dozen more modern formats too.
Drop files anywhere on the window. Native, instant, and exactly what you’d expect on a Mac.
Dial in compression, resolution and bitrate. Keep originals pristine or shrink for sharing.
Never overwrite a file by accident. Convertessa appends safe suffixes automatically.
Every job is logged locally. Re-run a previous conversion or revisit recent outputs in a click.
Bundle your converted files straight into a single ZIP, TAR or 7z — packaged and ready to share the moment a job finishes.
Right-click any file in Finder and choose Convert. A Quick Action handles it on the spot — no need to open the app first.
Shrink Convertessa to a tidy mini window that tucks into a corner — just a drop zone and a format picker for quick, one-off conversions.
No cloud. No account. No upload. Every conversion happens entirely on-device, using the power already in your Mac. What you convert is nobody’s business but yours.
Script conversions, wire them into your build, or batch a folder from the terminal. The same engine, no GUI required.
Read the full CLI documentation →Shrink Convertessa down to a small, focused window — drop, convert, done, with your recent conversions one click away.
macOS 14+ · Apple Silicon & Intel
New formats, new features, and fixes — every release, on the record.
Opus is a lossy format, so some audio data is discarded during encoding. Use the quality setting in Convertessa to control the trade-off: higher quality preserves more detail; lower quality produces smaller files.
Yes. Drag a VIDEO_TS folder — or any folder containing .vob files — onto Convertessa and it processes every file in one pass. From the command line, pass the folder path directly: convertessa /Volumes/MyDVD/VIDEO_TS/ --to opus.
Yes. VOB files carry video, audio, and subtitle tracks in one container; the Opus output contains audio only — video and subtitle data are not included.