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Convert VOB to FLAC - Extract Lossless Audio from DVDs

Extract DVD audio in lossless quality. Convert VOB files to FLAC format instantly.

Step 1: Upload your files

You can also Drag and drop files.

Step 2: Choose format
Step 3: Convert files

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Why Extract Audio from DVD Files?

VOB files store everything on a DVD - video, audio, subtitles, and menus. But sometimes you only need the audio track. Maybe it's a concert DVD, a music video collection, or film dialogue you want to preserve.

Converting to FLAC gives you that audio in lossless quality. Unlike MP3 which discards audio data to shrink files, FLAC compresses without losing a single bit. You get smaller files than uncompressed WAV while keeping perfect fidelity.

How to Convert VOB to FLAC

  1. Upload your VOB file - Drag and drop or click to select your DVD video file
  2. Select FLAC as output - Choose lossless FLAC format for the extracted audio
  3. Download your audio - Get your extracted audio file ready for any music player

The entire process happens in your browser. No software installation needed, works on any device.

VOB vs FLAC: Understanding the Formats

VOB (Video Object) is the container format used on DVDs. It typically contains MPEG-2 video along with audio tracks encoded in AC-3 (Dolby Digital), DTS, or sometimes uncompressed PCM. A single VOB file can hold multiple audio streams in different languages.

FLAC (Free Lossless Audio Codec) is purely an audio format. It uses lossless compression to reduce file sizes by 50-60% compared to WAV while maintaining bit-perfect audio reproduction. In our testing, a typical concert DVD chapter converts from a 500MB VOB to around 40-60MB of FLAC audio.

FeatureVOBFLAC
ContentVideo + Audio + SubtitlesAudio only
CompressionLossy video, varies for audioLossless audio
File sizeLarge (includes video)Smaller (audio only)
PlaybackDVD players, some softwareUniversal audio players
EditingDifficultEasy in any audio editor

Common Use Cases

Concert DVD Archiving

Concert DVDs often have exceptional audio quality recorded directly from the mixing board. Extracting to FLAC preserves this studio-quality sound for your music library without the video portion taking up space.

Music Video Collections

If you have DVDs with music videos, you can extract just the songs. FLAC keeps the original audio quality for playback on any device.

Film Score Extraction

Some movie soundtracks sound better ripped directly from the DVD than commercial releases. FLAC extraction preserves the theatrical mix.

Audio Editing Projects

Need to work with DVD audio in a DAW? FLAC provides lossless source material that you can edit without generation loss.

When to Choose FLAC Over Other Formats

FLAC is ideal when you want the best possible quality and have storage space available. For archiving purposes, FLAC is the standard choice among audiophiles and professionals.

If you need smaller files for portable devices, consider VOB to MP3 instead. MP3 creates much smaller files but discards some audio data. For Apple devices specifically, VOB to M4A offers efficient compression with good quality.

Choose FLAC when:

  • Audio quality is your top priority
  • You're creating an archive for long-term storage
  • You plan to edit the audio later
  • Storage space isn't a concern

Quality Preservation

When we extract audio from VOB files, the original audio stream is decoded and re-encoded to FLAC without any quality loss. The DVD audio - whether it's AC-3, DTS, or PCM - is converted to FLAC's lossless compression.

In our testing, the extracted FLAC files maintain the exact audio characteristics of the original DVD. Sample rates, bit depths, and channel configurations are preserved based on the source material.

Works on All Devices

Our browser-based converter works everywhere:

  • Windows, Mac, Linux, Chromebook
  • Chrome, Firefox, Safari, Edge
  • iPhone, iPad, Android tablets

No plugins required. Just upload your VOB file and download FLAC audio.

Pro Tip

DVDs typically split content across multiple VOB files (VTS_01_1.VOB, VTS_01_2.VOB, etc.). For complete audio extraction from a concert or film, you may need to convert each VOB separately and combine the FLAC files afterward using audio editing software.

Common Mistake

Assuming all DVD audio is the same quality. Consumer DVDs often use AC-3 at 192-448kbps, while some audiophile releases include higher-quality DTS or even uncompressed PCM tracks. Check your DVD specs to know what you're working with.

Best For

Archiving concert DVDs, music video compilations, or any DVD where audio quality matters and you want to preserve it in a space-efficient lossless format for long-term storage.

Not Recommended

If you only need audio for casual listening on mobile devices and storage is limited, FLAC's larger files may be overkill. Consider MP3 or AAC for everyday portable use.

Frequently Asked Questions

FLAC is lossless, so you get the exact audio quality that was stored on the DVD. Most DVDs contain AC-3 (Dolby Digital) at 448kbps or DTS at higher bitrates. The extracted FLAC preserves all this audio data perfectly.

Our converter works with standard VOB files. Copy-protected DVDs have encrypted VOB files that cannot be processed by any standard converter. You'll need to work with unprotected VOB files from personal or non-commercial DVDs.

FLAC files are much smaller since they contain only audio. A 1GB VOB file typically produces a 50-100MB FLAC file, depending on the audio length and quality. You're removing the video portion entirely.

Yes, if your VOB contains 5.1 surround sound, the FLAC output will maintain all channels. FLAC supports up to 8 audio channels, easily handling DVD surround formats.

The converter extracts the primary audio track from the VOB file. If your DVD has multiple language tracks, the main audio track will be converted to FLAC.

FLAC is widely supported on desktop players (VLC, foobar2000, Winamp), streaming devices (Sonos, Chromecast Audio), and most Android devices. iPhones require a third-party app for FLAC playback.

Both are lossless with identical audio quality. FLAC files are 50-60% smaller than WAV due to compression. FLAC also supports metadata tags for organizing your music library.

Yes, you can upload multiple VOB files and convert them all to FLAC in one batch. This is especially useful when extracting audio from an entire DVD that spans multiple VOB files.

FLAC preserves 100% of the original audio quality while MP3 discards data to achieve smaller files. Choose FLAC for archiving or when you want the best quality. Choose MP3 when file size matters more than perfect fidelity.

VOB Conversions & Related Converters

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