MPEG to 3G2 Converter

How to Convert MPEG to 3G2 Online

1. Upload Your MPEG File: Drag and drop or click "Add Files" to select your .mpg or .mpeg source. Batch upload is supported, and large MPEG-2 program streams (DVD rips, captured broadcasts) are accepted.
2. Pick Video Codec and Audio Codec: Default Video Codec is H.264 — the best balance of quality and compatibility for 3G2. Switch to H.263 only when targeting very old CDMA handsets that predate baseline H.264. Default Audio Codec is AMR (Adaptive Multi-Rate), which is voice-optimized and tiny; switch to AAC if the clip has music or stereo dialogue.
3. Set File Compression and Resolution (Optional): Under File Compression, leave it on Quality Preset (Very High) for best look, or switch to Specific file size (enter MB/KB), Constant Bitrate, Variable Bitrate, Constant Quality (CRF), or Constraint Quality for fine control. Under Video Resolution, keep original or pick a Preset Resolution — 240p (320x240) for MMS, 480p (640x480) for smartphone playback.
4. Convert and Download: Click Convert. Files process in your browser session — no sign-up, no watermark, and your MPEG never leaves your machine for ad networks.

Why Convert MPEG to 3G2?

MPEG (.mpg / .mpeg) is the MPEG-1 or MPEG-2 video container that powered Video CDs, DVDs, and digital TV broadcasts from the mid-1990s onward. 3G2 (officially 3GPP2, file extension .3g2) is the CDMA2000 sibling of 3GP, standardized by the 3GPP2 consortium and first published in January 2004. Both 3GP and 3G2 are built on the ISO base media file format (ISO/IEC 14496-12, the same MP4 family box structure), but 3G2 adds CDMA-specific voice codecs — EVRC, EVRC-B, EVRC-WB, 13K (QCELP), SMV, and VMR-WB — that 3GP does not carry.

• Sending legacy MMS on CDMA handsets — Verizon, Sprint, and US Cellular feature phones from the mid-2000s expect 3G2 for picture-message video. A 30-second DVD-quality MPEG clip becomes a 1-3 MB 3G2 that fits inside MMS payload caps.
• Playback on classic flip phones and basic Android — older devices that pre-date hardware H.265/H.264-High-Profile decoding will play 3G2 at H.264 Baseline + AMR audio without stutter.
• Archive in a CDMA-network-compatible container — collectors of carrier-locked devices (Motorola RAZR V3c, LG VX series, Samsung SCH-series) need 3G2 specifically; 3GP files won't always mount.
• Strip large MPEG-2 program streams down for embedded systems — automotive infotainment units, in-flight entertainment kiosks, and industrial signage from 2008-2014 often only list .3g2 / .3gp in their codec sheets.
• Reduce DVD-rip file size by 80-95% — a 700 MB MPEG-2 VOB rip typically transcodes to a 30-60 MB 3G2 at 480p because H.264 is roughly 2-3x more efficient than MPEG-2 and the lower target resolution shrinks bitrate.
• Hand off video to a 3GPP2-only test rig — telecom QA labs that simulate IS-95/CDMA2000 RF still ingest sample clips as .3g2.

If you need a modern container instead, use MPEG to MP4 or MPEG to MOV. For GSM-network handsets, MPEG to 3GP is the correct sibling format.

MPEG vs 3G2 vs 3GP — Format Comparison

Recommended 3G2 Encoding Settings

Frequently Asked Questions

Why is the default audio codec AMR instead of AAC?

AMR (Adaptive Multi-Rate Narrowband) is the historical default for both 3GP and 3G2 because the format was engineered for voice on cellular networks — AMR at 12.2 kbps sounds clear for speech and produces files measured in kilobytes. The trade-off is that AMR is mono, sampled at 8 kHz, and sounds harsh for music. If your MPEG source is a music video, concert clip, or anything with stereo dialogue, switch Audio Codec to AAC. AAC still keeps file size small but preserves 44.1 / 48 kHz stereo.

What is the difference between 3G2 and 3GP, and why does it matter?

Structurally they're almost identical — both inherit the ISO base media file format from MP4, both default to H.264 video plus AMR audio. The difference is the codec extension set 3GPP2 added for CDMA networks: EVRC, EVRC-B, EVRC-WB, 13K (QCELP), SMV, and VMR-WB. These are CDMA voice codecs you won't find in 3GP. Practically: if your target device is a CDMA handset on Verizon, Sprint, or US Cellular, use 3G2. If it's GSM (AT&T, T-Mobile, most non-US carriers), use 3GP.

How much smaller will my 3G2 be than the MPEG source?

Substantially. A 700 MB MPEG-2 DVD-rip program stream typically transcodes to 30-60 MB as 3G2 at 480p H.264 — a 90-95% reduction. The savings come from two compounding factors: H.264 is roughly 2-3x more bit-efficient than MPEG-2 at equivalent quality, and 3G2 is usually targeted at much lower resolutions (320x240 or 640x480 vs DVD's 720x480). If you encode at 240p with AMR audio for MMS, expect 1-5 MB per minute.

Will my 3G2 play on a modern phone, or only on legacy CDMA handsets?

It will play on any modern device that has a current build of VLC, MX Player, or an FFmpeg-based player — Android, iOS, Windows, macOS, and Linux all handle 3G2 through software decoders. The catch is the system default players: iPhone's Photos / Files app and Android's Gallery may refuse to preview .3g2 because the extension isn't on their allowlist, even though the underlying H.264 stream is identical to MP4. If you want broad device compatibility, convert to MP4 instead — 3G2 makes sense only when the target really does require the extension.

Can I trim or cut the MPEG before converting to 3G2?

Yes. Under Trim, switch from Unchanged to Time Range and enter a Start Time and Duration. Both accept seconds (90) or HH:MM:SS.sss (00:01:30.500). This is the right move for MMS-sized clips — set a 10-30 second window and the resulting 3G2 lands comfortably under typical 1-3 MB carrier payload caps without further compression tricks.

Why does H.263 still appear as a video codec option?

H.263 is the original 3GPP video codec from 1995 and is mandatory for the most-basic 3G2 baseline profile. Handsets released before roughly 2006 — early flip phones, first-generation Verizon Get-It-Now devices — only decode H.263 in hardware. H.264 Baseline is the safer modern default and is required for anything resembling acceptable image quality at 320x240+, but if your target device is genuinely from the 2003-2005 era, H.263 is the correct pick.

Does the converter strip the MPEG-2 audio (MP2) correctly, or do I lose audio sync?

MP2 (MPEG-1 Audio Layer II) from your source is decoded to PCM internally and re-encoded into AMR or AAC for the 3G2 container, with timestamps preserved. Sync issues happen when the source MPEG has variable frame rate or broken PTS values (common in poorly demuxed broadcasts) — in that case, set File Compression to Constant Bitrate and pick a fixed frame rate (24 or 30 fps) under the resolution controls; that forces a constant timeline.

Are CDMA networks still operational, or is 3G2 only for archives now?

Verizon shut down its CDMA2000 / EV-DO network on December 31, 2022. Sprint's CDMA network was retired by T-Mobile in 2022 after the merger. US Cellular maintains some CDMA service in rural footprints but is phasing it out. So in 2026, 3G2 is primarily an archival, embedded-device, or test-rig format rather than something you'd send over a live network — but the devices that expect .3g2 still exist by the millions in storage drawers, in-flight entertainment systems, and industrial signage.

Is my file uploaded to your servers?

Conversions run inside your browser session — MPEG decode and 3G2 encode happen client-side, then the result is offered as a download. We don't store your file, watermark it, or limit by sign-up. For very large MPEG-2 DVD rips (>1 GB), use Compress MPEG first to shrink the source before transcoding to 3G2.