VOB to AIFC Converter

How to Convert VOB to AIFC Online

1. Upload Your VOB File: Drag and drop or click "+ Add Files" to select one or more VOB files from a DVD rip (each VOB is capped at 1 GiB by DVD spec, so longer titles split across VTS_01_1.VOB, VTS_01_2.VOB, etc.). Batch upload is supported.
2. Pick Audio Channel and Sample Rate: Defaults keep the source's channels (usually stereo or 5.1 from AC-3) and sample rate (typically 48 kHz on DVD). Override Audio Channel to force Mono or Stereo, and set Audio Sample Rate to 44.1 kHz if you want CD-grade output instead of DVD's 48 kHz.
3. Trim (Optional): Open the Trim panel to set a start time and duration if you only need a specific scene's audio — useful for grabbing one song or one line of dialogue from a 1-hour title.
4. Convert and Download: Click "Convert." Output is AIFC with PCM 16-bit big-endian audio by default — the Mac-native uncompressed AIFF-C variant. No watermark, no sign-up.

Why Convert VOB to AIFC?

VOB is the multiplexed container DVD-Video burns to disc — it bundles MPEG-2 video, navigation data, subtitles, and audio (LPCM, MPEG-1/2 Layer II, AC-3, or DTS — but never AAC) into one stream. AIFC (Audio Interchange File Format - Compressed), introduced by Apple in July 1991, is the extended cousin of AIFF: same big-endian RIFF-style chunk layout, but with a COMM compression-type field and an FVER chunk so it can carry codecs beyond raw PCM. Converting VOB to AIFC strips the video, demuxes the audio, and rewraps it in a container that Logic Pro, Final Cut Pro, GarageBand, and QuickTime treat as a first-class citizen.

• Salvaging DVD audio for a Mac DAW — Logic Pro and Final Cut Pro import AIFC natively without transcoding warnings. Pulling a film score, a commentary track, or a concert DVD's 48 kHz LPCM bed into an AIFC keeps you on Apple's preferred container without re-encoding the samples.
• Archiving home-movie DVDs before the discs rot — DVD-R and DVD+R discs degrade over 10-25 years depending on dye and storage. AIFC with PCM 16-bit big-endian preserves the audio losslessly while the .aifc extension flags it as Mac-native for Time Machine and iCloud Drive.
• Editing dialogue or score from a film school project — students still receive screener DVDs and reference cuts as VOB. Demuxing to AIFC gives you a Logic-friendly file with no MP3 generation loss, ready for a final mix.
• Repurposing DVD karaoke or instructional tracks — language-learning and karaoke DVDs ship audio as MP2 or AC-3 inside VOB. AIFC's compressed PCM (μ-law, A-law) trims size to roughly half of raw PCM when bandwidth or disk space matters.
• Pulling stems for podcast or YouTube use — a DVD lecture or interview becomes a clean AIFC track you can drop straight into GarageBand, Audacity, or iMovie without the "this file may need conversion" prompt iTunes throws on unfamiliar containers.

VOB vs AIFC — Format Comparison

Audio Codec Quick Guide (inside AIFC)

Frequently Asked Questions

Why convert VOB to AIFC instead of AIFF or WAV?

All three can carry the same lossless PCM samples — the difference is metadata and platform handling. AIFC adds the FVER chunk and a compression-type field in the COMM chunk so it can also store μ-law, A-law, and ADPCM if you ever need a smaller file. macOS's default "AIFF" export is actually AIFF-C/sowt under the hood, so AIFC is what Apple's ecosystem writes by default. If your downstream tool is strictly AIFF-only (older Windows DAWs, some legacy hardware samplers), use the VOB to AIFF page instead. For Windows-first workflows, VOB to WAV is a safer bet.

Will the conversion be lossless?

If the source VOB carries LPCM audio (uncommon but present on some music DVDs and DVD-Audio discs), the default PCM 16-bit big-endian output is sample-accurate lossless. If the source is AC-3 (Dolby Digital) or MP2 — which covers nearly all commercial DVD-Videos — the decode-and-rewrap step is lossless relative to the AC-3/MP2 bitstream, but the original studio master was already lossy-compressed when the disc was authored. You cannot recover detail that AC-3 threw away.

How big will my AIFC file be?

For PCM 16-bit stereo at 44.1 kHz, expect roughly 10 MB per minute (1411 kbps). At 48 kHz (DVD's native rate) it's about 11 MB per minute. A 90-minute film's stereo audio comes out near 950 MB. Switching the AIFC codec to μ-law or A-law roughly halves the file at the cost of telephony-grade artefacts on music — fine for spoken-word, audible on a film score.

What audio codec was inside my VOB to begin with?

DVD-Video discs use one of four: AC-3 (Dolby Digital, by far the most common — typically 192-448 kbps), DTS (1.5 Mbps, on some special editions), MPEG-1/2 Audio Layer II (mostly older PAL releases), or linear PCM (rare, mainly music and concert DVDs). VOB explicitly cannot carry AAC. When the converter demuxes, it decodes whichever codec is present and re-encodes it as the AIFC codec you selected — PCM 16-bit big-endian by default.

Why does my DVD title span multiple VOB files?

The DVD-Video specification caps each VOB at 1 GiB so the discs remain readable across operating systems with 32-bit file-size limits from the mid-1990s. A typical 2-hour film fits in five or six VOBs named VTS_01_1.VOB, VTS_01_2.VOB, and so on. Upload them all together — the converter processes each file separately, so you'll get one AIFC per VOB. To join them, use a DAW or concatenate first with a tool like MPEG Streamclip or FFmpeg.

Can I extract just the 5.1 surround mix to AIFC?

AIFC can store multichannel PCM (the spec allows arbitrary channel counts in the COMM chunk), but most editors and players only handle stereo or mono AIFC reliably. Set Audio Channel to Stereo to fold a 5.1 AC-3 track down to two channels for general use. If you specifically need the discrete 5.1 stems, AIFC is not the right container — bounce to multi-mono WAV stems in a DAW after import.

Will the AIFC play on Windows?

Modern Windows handles AIFC through VLC, foobar2000, MediaMonkey, and any player using FFmpeg or LAV Filters. Windows Media Player and the built-in Films & TV app don't open .aifc natively — they recognize .aiff and .aif but not .aifc. If your target is a Windows-only workstation, rename the extension to .aif (the AIFF/AIFC spec permits it) or convert to WAV instead.

Are my files private?

Files upload over HTTPS, process in an isolated job, and auto-delete shortly after the conversion finishes. No account is required, files aren't indexed or shared, and the AIFC output is yours to download. The page works on Chrome, Firefox, Safari 14+, and Edge — no Flash, no installer.

What if my VOB has no audio track?

Some VOBs in a DVD set are menu loops or trailers that carry only video, or chapters where the audio stream is muted. The converter will return an error or produce a silent AIFC for those files. Check the VOB in VLC first (Tools → Codec Information) to confirm an audio track is present, and prefer the VTS_xx_1.VOB through VTS_xx_n.VOB files that hold the main title rather than VIDEO_TS.VOB (menu) or VTS_xx_0.VOB (chapter menus).