Your files stay on your Mac.
DVD VOB files bundle video and audio streams together in a disc container. Converting to Ogg Vorbis pulls the primary audio track and encodes it in the open, efficient Vorbis format. The entire conversion runs locally on your Mac — no upload, no account, no internet connection needed.
Drag one VOB file or an entire folder of VOB files into Convertessa. Batch mode processes every file in the folder in a single pass.
Choose Ogg Vorbis from the output format list. Set quality to control the Vorbis encoder — higher values produce better fidelity at larger file sizes.
Click Convert. Convertessa extracts and encodes each VOB's audio track to Ogg Vorbis locally. The original files are left untouched.
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.
No. Ogg Vorbis is an audio-only format. Convertessa extracts the primary audio track from the VOB and encodes it as Ogg Vorbis; the video stream is not carried over.
Never. Convertessa runs entirely on your Mac. VOB files are read and written locally — nothing is uploaded.
Yes. Drop a folder onto Convertessa or run convertessa /path/to/dvd-folder --to ogg from the command line to batch-convert every VOB file in one go.