VOB to AIFF Converter

How to Convert VOB to AIFF Online

1. Upload Your VOB File: Drag and drop the VOB file (or whole VIDEO_TS folder contents) onto the dropzone, or click "+ Add Files" to browse. Batch uploads are supported, so you can queue every chapter from a DVD rip in one job.
2. Pick Audio Channel and Sample Rate: Default is "Original" — the converter copies your VOB's channel layout (usually 2.0 stereo, sometimes 5.1) and sample rate (48 kHz for DVD audio) straight into 16-bit big-endian PCM, which is the AIFF default. Switch Audio Channel to Mono if you're targeting voice work, or downsample to 44.1 kHz for CD-mastering pipelines.
3. Trim to the Section You Want (Optional): Open the Trim panel to set a start time and duration in seconds. Useful when a single VOB holds a whole DVD chapter and you only need one song, dialogue line, or commentary segment.
4. Convert and Download: Click "Convert". Files process on our servers (VOB demuxing isn't viable in-browser), and the AIFF is delivered with no sign-up, no watermark, and no file-count caps.

Why Convert VOB to AIFF?

VOB (Video Object) files are the MPEG program-stream containers that live inside a DVD's VIDEO_TS folder. The audio track inside is typically Dolby Digital (AC-3) at 192-448 kbps, occasionally DTS or MPEG-1 Layer II — none of which load cleanly into Pro Tools, Logic, or other professional DAWs. AIFF (Audio Interchange File Format), Apple's 1988 uncompressed PCM container, is the macOS-native counterpart to WAV and is the format DAWs prefer for editing because no decoding overhead is incurred per playback.

• DAW import for Logic Pro and Pro Tools — Logic and Pro Tools both treat AIFF as a first-class import format. Dropping an AC-3 demuxed from a VOB usually requires a third-party plug-in; AIFF imports natively.
• Archiving commentary tracks and bonus material — DVD director's commentaries and bonus interviews are often locked away in VOB containers. AIFF preserves them losslessly so future re-encodes don't compound compression artifacts.
• Sampling concert and live-recording DVDs — Musicians sampling licensed concert DVDs need bit-accurate PCM; AC-3's lossy compression introduces pre-echo and high-frequency smearing that becomes audible when pitched or time-stretched.
• Restoration and remastering workflows — Audio engineers restoring old DVD-only releases want PCM in the editor so plug-ins (iZotope RX, FabFilter Pro-Q) operate on the cleanest signal available.
• Spoken-word and lecture archives — Educational DVDs (training, language courses) sometimes only exist as VOB. AIFF gives you a metadata-rich, editable copy that imports into transcription tools.
• CD authoring from DVD audio — Burning concert audio to Red Book CD requires 16-bit/44.1 kHz PCM. Convert here, downsample, and your AIFF is CD-ready.

VOB vs AIFF — Format Comparison

Audio Channel and Sample Rate Quick Guide

Need the audio in a different format instead? Try VOB to MP3 for portable playback, VOB to WAV for Windows-native PCM, VOB to FLAC for ~50% smaller lossless files, or VOB to AC3 if you want to keep the original Dolby Digital track untouched.

Frequently Asked Questions

Will the AIFF sound better than the original AC-3 inside my VOB?

No. Converting lossy AC-3 to uncompressed AIFF cannot recover information that was discarded during the original AC-3 encode — it just stores the decoded waveform in a format DAWs can read directly. The benefit is editability, not extra fidelity. If your VOB happens to carry LPCM audio (rare on commercial DVDs, more common on home-authored discs), the AIFF will be bit-identical.

What about copy-protected DVDs (CSS-encrypted VOBs)?

Commercial DVDs are typically encrypted with CSS and the VOB files cannot be read by browser-uploaded conversion tools — you'd need to rip the DVD first with HandBrake or MakeMKV on your own machine, then upload the decrypted VOB. xconvert only processes the file you upload; we don't break encryption or distribute decryption keys.

Why is my AIFF so much larger than the VOB?

The VOB stored audio as compressed AC-3 (often 192-448 kbps). AIFF stores it as uncompressed 16-bit/48 kHz PCM, which is roughly 1536 kbps for stereo — about 3-8x larger. A three-minute song that was 5 MB inside the VOB becomes roughly 30 MB as AIFF. That's normal, and it's why FLAC exists as a middle ground.

My DVD has 5.1 surround audio — does that come through?

Yes, if you leave Audio Channel set to Original the 5.1 channel layout is preserved as a 6-channel AIFF. Pro Tools and Logic both handle multichannel AIFF. If you want a stereo mixdown instead (much more common for editing and listening), switch Audio Channel to Stereo and the converter will fold the surround channels into a standard 2.0 mix.

Should I pick 44.1 kHz or 48 kHz for the output?

Keep 48 kHz (Original) if the AIFF is going into a video or DVD-authoring project — that's the DVD-Video spec rate. Switch to 44.1 kHz only when you're heading to CD or to a master that requires Red Book (audio-CD) compliance. Sample-rate conversion is mathematically lossy, so do it once at the end of your pipeline, not at every step.

Can I extract audio from just one chapter without ripping the whole DVD?

If you only uploaded the single VOB that contains the chapter, yes — the converter processes whatever you upload. DVDs split content across VTS_01_1.VOB, VTS_01_2.VOB, etc., so a long feature may span several VOBs; you'd need to upload all the ones covering your section, or use the Trim option to cut to the exact time window. For finer cuts, the Audio Cutter lets you trim the resulting AIFF down to the second.

Is AIFF the same as Apple Lossless (ALAC)?

No. AIFF is uncompressed PCM (like WAV); Apple Lossless / ALAC is a compressed lossless format that's roughly 40-60% smaller. Both decode to identical PCM, so audio quality is the same — AIFF just doesn't compress. If file size matters and you're staying in the Apple ecosystem, ALAC or FLAC is more efficient.

Will iTunes, Music app, and Windows Media Player play AIFF?

Yes. AIFF playback is native on macOS (QuickTime, Music app, Logic, Pro Tools, Final Cut), on iOS, and on Windows via Media Player, foobar2000, VLC, and Audacity. The only places it tends to be inconvenient are web browsers (where MP3/AAC are more common) and some older Android players — in those cases convert further to AIFF to MP3.