VOB (Video Object) is the container format used on DVD-Video discs. It's based on the MPEG-2 Program Stream format and contains MPEG-2 video, AC-3 or DTS audio, DVD subtitles, and navigation data. VOB files are found in the VIDEO_TS folder of a DVD disc or rip.

VOB to MP4 Converter

Convert DVD VOB files to universally compatible MP4 online for free. Digitize your DVD collection with H.264 encoding. No software needed. Up to 100 MB.

256-bit SSL 500K+ conversions 4.9 rating Files auto-deleted in 2h

Drop your VOB file hereTap to choose your VOB file

Also supports MKV, MOV, AVI, WebM, WMV, FLV • Max 100 MB

.vob video.vob 42.5 MB

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.VOB .MP4

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How to Convert VOB to MP4

Upload

Drag and drop your VOB file into the converter above, or click Choose VOB File to browse your device. VOB files are typically found in the VIDEO_TS folder of a DVD rip.

Convert

Click Convert to MP4. Our server re-encodes the MPEG-2 video to H.264 + AAC for universal playback. Takes 30 seconds to 2 minutes.

Download

Click Download MP4 to save the converted video. That's it — no registration, no email required.

Why VOB Files Won't Play on Modern Devices

DVD Rips & the VOB Problem

When you rip a DVD or copy its VIDEO_TS folder, you end up with VOB files — a container format designed for DVD players in the late 1990s. These files use MPEG-2 video and AC-3 (Dolby Digital) audio, codecs that modern devices no longer support natively. Your phone, tablet, or laptop can't play them without special software, and sharing them is nearly impossible.

On Windows 10/11

Windows dropped free MPEG-2 playback support. The built-in Movies & TV app and Windows Media Player cannot play VOB files unless you purchase the MPEG-2 Video Extension from the Microsoft Store ($0.99). Even with the extension, VOB navigation menus and multi-angle features are ignored. Converting to MP4 gives you instant, free playback in any Windows application.

On Mac / iPhone / iPad

macOS and iOS have zero native VOB support. QuickTime Player, the Files app, and the Photos app all refuse to open VOB files. You need VLC or IINA for basic playback, but you still can't share the video via AirDrop, Messages, or iMovie. Converting VOB to MP4 makes your DVD videos work natively across the entire Apple ecosystem without any third-party apps.

On Android & Smart TVs

Most Android phones and tablets lack MPEG-2 hardware decoders, so VOB playback either fails or drains the battery through software decoding. Smart TVs from Samsung, LG, and Sony have inconsistent VOB support — some models play them, others don't. Converting to MP4 with H.264 guarantees smooth playback on every Android device, smart TV, and streaming box.

What is VOB?

VOB (Video Object) is the core container format of the DVD-Video specification, introduced in 1996. It's based on the MPEG-2 Program Stream (MPEG-PS) format and was designed to hold everything a DVD needs: video, audio, subtitles, and navigation commands in a single multiplexed stream.

VOB files contain MPEG-2 video (the standard DVD codec at 480i/576i resolution), audio in AC-3 (Dolby Digital), DTS, LPCM, or MPEG audio formats, and bitmap-based subtitles. Each VOB file on a DVD is limited to approximately 1 GB, so movies are split across multiple files (VTS_01_1.VOB, VTS_01_2.VOB, etc.) inside the VIDEO_TS folder.

The main limitation of VOB is that it's a dead format. No modern device, browser, or platform supports it natively. It was designed for dedicated DVD players with hardware MPEG-2 decoders — hardware that phones, tablets, and modern PCs no longer include. To watch DVD content on any current device, converting VOB to MP4 is essentially required.

What is MP4?

MP4 (MPEG-4 Part 14) is the international standard video container format, published as ISO/IEC 14496-14. It was derived from Apple's QuickTime MOV format in 2001, using the same atom/box architecture for organizing video, audio, and metadata.

MP4 supports H.264 and H.265 video with AAC audio, and includes the faststart flag (moov atom at the beginning) for instant web playback without buffering. It's the recommended upload format for YouTube, Instagram, TikTok, Facebook, and every major platform.

The defining strength of MP4 is universal compatibility. Every computer, phone, tablet, smart TV, gaming console, web browser, and media player manufactured in the last 15 years can play H.264 MP4 files. When you need to digitize DVDs into a format that works everywhere without question, MP4 with H.264 is the only practical choice.

VOB vs MP4: Quick Comparison

Feature	VOB	MP4
Full name	Video Object (DVD-Video)	MPEG-4 Part 14
Based on	MPEG-2 Program Stream	ISO Base Media File Format
Year introduced	1996 (DVD specification)	2001 (ISO standard)
Video codec	MPEG-2 only	H.264, H.265, AV1
Audio codecs	AC-3, DTS, LPCM, MPEG Audio	AAC, MP3, AC-3
Resolution	720×480 (NTSC) / 720×576 (PAL)	Any (up to 8K)
File size limit	~1 GB per file (DVD spec)	No practical limit
Subtitles	Bitmap-based (DVD VobSub)	Text-based (tx3g)
Phone playback	Not supported	Native (all phones)
Web browser support	Not supported	All browsers (H.264)
Smart TV support	Rare / inconsistent	Universal
Best for	DVD players (legacy hardware)	Everything else

Why Convert VOB to MP4?

Digitize your DVD collection

DVDs degrade over time — scratches, disc rot, and mechanical wear make them unreadable. Converting VOB files to MP4 creates a permanent digital backup of your movie library, home videos, and recordings. Once in MP4 format, your videos are safe from physical damage and can be stored on hard drives, cloud storage, or NAS devices indefinitely.

Play on phones & tablets

No modern phone or tablet can play VOB files natively. iPhones, iPads, Android phones, and tablets all lack MPEG-2 support. Converting to MP4 means you can watch your DVD content on any mobile device, share videos via messaging apps, and upload to social media — all impossible with VOB files.

Preserve home movie DVDs

Many families have irreplaceable memories on DVD: weddings, birthdays, graduations, holiday footage. These discs won't last forever, and the hardware to play them is disappearing. Converting VOB to MP4 preserves these videos in a modern format that can be shared with family, uploaded to Google Photos or iCloud, and played on any screen for decades to come.

Smaller file sizes

MPEG-2 (used in VOB) is an inefficient codec by modern standards. A typical DVD movie occupies 4–8 GB across multiple VOB files. Converting to H.264 MP4 produces equivalent or better visual quality at roughly half the file size. Your DVD content takes up less storage space while actually looking better on modern displays.

Frequently Asked Questions

Does converting VOB to MP4 lose quality?

VOB files use MPEG-2 video, which must be re-encoded to H.264 for the MP4 container. Our converter uses CRF 23, which produces quality indistinguishable from the original DVD for most content. In practice, H.264 at CRF 23 often looks better than the original MPEG-2 at the same file size because H.264 is a far more efficient codec. The resulting MP4 is typically smaller than the source VOB while maintaining equivalent visual quality.

What is a VOB file?

VOB (Video Object) is the container format used on DVD-Video discs. It's based on the MPEG-2 Program Stream format and contains MPEG-2 video, AC-3 (Dolby Digital) or DTS audio, DVD subtitles, and navigation data. VOB files are found in the VIDEO_TS folder of a DVD disc or rip, with names like VTS_01_1.VOB.

Why can't I play VOB files on my phone or computer?

VOB is a legacy DVD format from the late 1990s. Modern devices — iPhones, Android phones, tablets, and most computers — don't include MPEG-2 decoders by default. Windows 10/11 requires a paid MPEG-2 extension from the Microsoft Store. macOS and iOS have no native VOB support at all. Converting to MP4 with H.264 makes the video playable on every modern device without any additional software or codecs.

How do I get VOB files from a DVD?

Insert the DVD into a computer with a DVD drive and open the disc contents. Navigate to the VIDEO_TS folder — you'll find VOB files named VTS_01_1.VOB, VTS_01_2.VOB, etc. Copy these files to your computer, then upload them here to convert to MP4. Note: commercially copy-protected DVDs require a ripping tool like HandBrake or MakeMKV to extract the video first.

Can I convert multiple VOB files from one DVD?

DVDs split movies across multiple VOB files (typically 1 GB each). You can upload and convert each VOB file individually — each will become a separate MP4 file. For a seamless single MP4 of the entire movie, you would need to merge the VOB files first using a tool like FFmpeg or use desktop software like HandBrake that can read the entire VIDEO_TS folder.

What encoding settings does this converter use?

We use FFmpeg with: H.264 video (libx264, CRF 23, medium preset) for excellent quality at reasonable file sizes, AAC audio at 192 kbps for transparent audio quality, YUV420p pixel format for universal device compatibility, and faststart for instant web playback. These settings produce MP4 files that are typically smaller than the original VOB while maintaining equivalent visual quality.

Is this VOB to MP4 converter free?

Yes. Convertio.com offers free VOB to MP4 conversion with no watermarks, no registration, and no email required. Upload your file, convert, and download. Your files are encrypted during transfer and automatically deleted from our servers within 2 hours.