VOB to 3G2 Converter

How to Convert VOB to 3G2 Online

1. Upload Your VOB File: Drag and drop or click "+ Add Files" to load .vob files from a ripped DVD (typically out of a VIDEO_TS folder). Batch upload is supported, and you can use Merge Video to stitch the consecutive VTS_01_1.VOB, VTS_01_2.VOB,... segments that DVDs split at the 1 GiB mark back into a single playable file before conversion.
2. Pick a Quality Preset or Bitrate Mode: Open Advanced Options and choose a Quality Preset (Lowest, Low, Medium, High, Very High — the default — or Highest), or switch to Constant Bitrate / Variable Bitrate for explicit kbps control, Constant Quality / Constraint Quality for CRF-style targeting, or Specific file size to back-solve the bitrate from a target MB number — useful when you need the clip under an MMS or feature-phone storage cap.
3. Set Resolution and Trim (Optional): Pick a Preset Resolution (3G2 carriers historically targeted QCIF 176x144, QVGA 320x240, or 480x320), use Resolution Percentage to scale by a share of the source, enter a custom Width x Height, or keep the original DVD resolution (typically 720x480 NTSC or 720x576 PAL). Use Trim with a Time Range to grab a single chapter instead of a whole title.
4. Convert and Download: Click "Convert" and download your .3g2 file. processing happens on our servers — no sign-up, no watermark, no email gating.

Why Convert VOB to 3G2?

VOB is a DVD-Video container — a strict subset of the MPEG program stream that pairs H.262/MPEG-2 video with AC-3, DTS, MPEG-2 audio, or linear PCM, plus subtitle and menu streams. 3G2 (3GPP2) is the CDMA-side mobile container defined by the 3rd Generation Partnership Project 2, built on the ISO base media file format (the same MP4 lineage) and historically used by Verizon, Sprint, and other CDMA carriers for MMS clips and feature-phone playback. Converting VOB to 3G2 is mainly an archival or legacy-device workflow:

• Feature-phone and legacy CDMA device playback — Older Verizon/Sprint flip phones, certain BlackBerry models, and PTT radios expect 3G2 with H.263 or MPEG-4 Part 2 video plus AMR-NB audio at QCIF (176x144) resolution.
• Migrating home-movie DVDs onto small-screen archives — A 4.7 GB single-layer DVD (~120 minutes of MPEG-2) re-encodes to a few hundred MB of 3G2 at QVGA, fitting comfortably on the SD cards used by older PDAs and dash-cam style devices.
• MMS-friendly clips for legacy networks — Carriers historically limited MMS attachments to a few hundred kilobytes; trimming a DVD chapter and re-encoding to 3G2 at low bitrate hits those caps.
• Format requirements for older NAB/court submission systems — Some legacy evidence-management and broadcast-ingest pipelines still whitelist 3GP/3G2 because the spec is frozen and decoders are deterministic.
• Compatibility testing for video apps — Developers building media players that must handle the full 3GPP2 specification need real 3G2 source files; converting a known DVD clip gives a predictable test asset.
• Stripping DVD navigation and audio multiplex — VOB files carry menus, multiple audio languages, and subpicture streams; 3G2 collapses to one video + one audio track, producing a clean single-stream archive.

If 3G2 is not strictly required, VOB to MP4 is the safer modern choice (every phone since 2007 plays MP4/H.264), or VOB to 3GP for GSM-side legacy devices. For broader desktop archival pick VOB to MKV or VOB to AVI.

VOB vs 3G2 — Format Comparison

Video Codec Cheat Sheet for 3G2 Output

3G2 is a container, not a codec — what plays on which device depends on what you pack inside it. The 3GPP2 file-format spec inherits the 2007 3GP video codec list: MPEG-4 Part 2, H.263, or H.264/AVC.

For audio, pair video with AMR-NB for voice-only clips on legacy phones or AAC-LC for music — AMR-WB+ and HE-AAC v2 are explicitly excluded from the 3G2 spec, so xconvert will not emit those into a .3g2 container.

Frequently Asked Questions

Will the audio from my DVD survive the conversion?

The video and audio streams are re-encoded — the AC-3 5.1 surround track or LPCM track from your VOB is downmixed to stereo (or mono) and re-encoded into an audio codec the 3G2 container accepts, typically AAC-LC or AMR-NB. Multi-language audio tracks and Dolby surround channels do not carry through; only the first selected audio stream is kept.

Why is the output so much smaller than the source VOB?

A typical DVD VOB runs 4-9 Mbps for video plus a few hundred kbps for audio, while 3G2 was designed for mobile networks where total bitrates of 32-384 kbps are normal. A 1 GiB DVD chapter usually lands somewhere between 10 and 80 MB as 3G2 depending on the quality preset and resolution you pick — the format is built around aggressive compression for small screens.

Can I keep DVD chapter markers, subtitles, or menus?

No. VOB carries DVD navigation (IFO/BUP) data, subpicture streams, and multiple audio tracks; 3G2 is a single-video + single-audio container with no menu concept. If you need chapter navigation, VOB to MKV preserves chapter markers and soft subtitles. To pull subtitle text first, use a tool like CCExtractor before conversion.

Are my VOBs CSS-encrypted from a commercial DVD?

Commercial DVDs typically encrypt the video tracks with Content Scramble System (CSS). xconvert does not decrypt CSS — you need to rip the DVD with a tool like HandBrake or MakeMKV (which handle CSS) first, then upload the decrypted VOB or the MKV/MP4 they produce. Home-burned and unencrypted DVDs convert directly.

My DVD has VTS_01_1.VOB, VTS_01_2.VOB, etc. — should I convert each separately?

No. DVDs split a single title into 1 GiB VOB segments purely for filesystem compatibility — the content is continuous. Upload all segments in numerical order and enable Merge Video so xconvert concatenates them before encoding, otherwise each chunk converts to its own 3G2 file with a cut at the seam.

Should I pick H.263, MPEG-4, or H.264 for the 3G2 codec?

H.264 gives the best quality per kbps and is what any device manufactured after roughly 2007 will decode. Pick MPEG-4 Part 2 for mid-2000s Symbian/BlackBerry-era handsets, and H.263 only if you are explicitly targeting a pre-2007 CDMA flip phone where decoder support is minimal. When in doubt, H.264 at 320x240 / 256 kbps is the safest default.

Will my iPhone or modern Android play the 3G2 output?

Probably not natively. Apple's documented playback codecs do not include the 3GPP2 container, and modern Android devices vary — Samsung Galaxy phones have historically supported 3G2, but stock Pixel and many other Android lines do not. If you just want the clip to play on a modern phone, convert to MP4 instead — 3G2 is only the right answer when you specifically need the 3GPP2 container for a legacy device or pipeline.

Is anything uploaded to your servers permanently?

processing happens on our servers and files are deleted after the session ends. No sign-up, no watermark, no file-count limit. The same applies if you later need to go the other direction with 3G2 to 3GP or any of the other VOB output formats.