VOB to 3GP Converter

How to Convert VOB to 3GP Online

1. Upload Your VOB File: Drag and drop or click "+ Add Files" to select VOB files from your DVD rip folder (usually VIDEO_TS/VTS_01_1.VOB and similar). Batch is supported — queue multiple chapters at once.
2. Pick a Quality Preset: Default is "Very High (Recommended)". Drop to "Medium" or "Low" for legacy 3G phones that can only decode H.263 at ~339 kbps. Or switch to Specific file size, Constant Bitrate, Variable Bitrate, Constant Quality, or Constraint Quality if you need exact targets.
3. Resize and Trim (Optional): Use Preset Resolutions to step down from DVD's 720x480/576 to mobile-friendly 320x240 (QVGA) or 176x144 (QCIF). Trim with a start time and duration to cut just the chapter you need — VOBs often bundle multiple titles in one file.
4. Convert and Download: Click "Convert". Files process server-side — no sign-up, no watermark, output ready in seconds.

Why Convert VOB to 3GP?

VOB (Video Object) is the MPEG-2 container DVD-Video uses inside the VIDEO_TS folder, capped at 1 GiB per file by the DVD spec. 3GP is the MPEG-4 Part 12-based container the 3GPP standardized in April 2003 for mobile multimedia. Converting bridges a high-bitrate DVD master to a slimmed-down mobile-ready file — useful when the target device, archive system, or upload pipeline expects 3GP rather than raw VOB.

• Play DVD rips on legacy feature phones — Older Nokia, Sony Ericsson, and Symbian devices only decode H.263 + AMR-NB inside a 3GP container. VOB's MPEG-2 stream cannot play directly on these handsets.
• Emulator and retro-mobile testing — Developers maintaining apps for older Android (pre-4.4) or J2ME builds often need genuine 3GP samples; VOB rips have to be transcoded to test playback paths.
• Compact size for slow connections — A 1 GiB VOB chapter at MPEG-2 ~6 Mbps shrinks to a few MB at 3GP's H.263/QCIF mobile profile, friendly to 3G/EDGE or low-data plans.
• Embed in MMS or older telematic systems — MMS gateways and certain in-vehicle/industrial systems still expect 3GP as the carry-format for short video; VOB is not accepted.
• Convert ripped DVD chapters for evidence/archival use — Legal-discovery and CCTV archives sometimes mandate 3GP for storage uniformity across mobile and DVD-sourced evidence.
• Strip menus and navigation — VOB carries DVD menus, subtitles, and IFO navigation data; 3GP keeps only the elementary video + audio streams, producing a cleaner playable file.

VOB vs 3GP — Format Comparison

Codec & Resolution Quick Guide

Frequently Asked Questions

Will the converted 3GP play on a modern smartphone?

Yes — Android plays 3GP natively, and iOS plays it through QuickTime-based apps and most third-party video players. The format is most commonly associated with 3G-era feature phones, but the container itself remains supported. For everyday playback on a modern phone you are usually better off targeting MP4 with H.264 — see VOB to MP4 for that path.

Why is my 3GP file so much smaller than the original VOB?

VOB stores DVD-Video as MPEG-2 at roughly 4-9 Mbps with multiplexed AC-3 audio and uncompressed menus/subtitles. 3GP typically encodes with H.263 or H.264 at hundreds of kbps and trims the navigation overhead. A 700 MB VOB chapter routinely converts to under 30 MB of 3GP — that is the format doing its job, not a loss bug.

Which codec should I pick for the broadest 3GP compatibility?

H.263 video with AMR-NB audio is the historic baseline; nearly any device that recognizes the .3gp extension can decode it. H.264 + AAC-LC gives much better quality but skips support on truly old handsets (pre-2007 feature phones). If "play everywhere including a 2005 Nokia" matters, pick H.263 + AMR-NB; otherwise pick H.264 + AAC-LC.

Do I lose menus, subtitles, or multiple audio tracks?

Yes. VOB carries DVD navigation (IFO/BUP), chapter markers, subpicture subtitles, and up to eight audio streams. 3GP keeps a single video plus one audio track and (optionally) 3GPP Timed Text. If you need subtitles preserved, burn them into the video before converting, or pick an alternative target like MP4 with a soft-subtitle track.

My VOB is split into VTS_01_1.VOB, VTS_01_2.VOB, etc. — do I convert each separately?

Each .VOB past VTS_01_1 is a 1 GiB continuation of the same title (the DVD spec splits long titles for ISO 9660 compatibility). Convert them one at a time and then concatenate the 3GP outputs, or merge the VOBs first (copy /b on Windows, cat on macOS/Linux) into one file and convert that. Trim controls on this page also let you grab just one chapter.

What's the difference between 3GP and 3G2?

3GP was designed for GSM/UMTS phones (3GPP); 3G2 is the CDMA2000 equivalent (3GPP2), released in January 2004. 3G2 adds audio codecs like EVRC and QCELP used on CDMA carriers and drops Enhanced aacPlus and AMR-WB+. If your target device is on a GSM-derived carrier (most of the world), pick 3GP; for older Verizon/Sprint CDMA hardware, see VOB to 3G2.

Can I extract just the audio (AMR or AAC) from a VOB?

Not directly on this page — this converter produces a 3GP video container. To pull audio only, use an audio-target page like VOB to MP3 or VOB to AAC. The Trim controls here are useful first if you only want the audio of one specific chapter rather than the whole disc.

Is there a file-size limit?

Each input VOB is capped at 1 GiB by the DVD spec itself, which is well within the uploader's limits. If you ripped a long DVD title that spans multiple VOB segments, upload them as a batch and convert in one session.