DIVX vs Y4M
A detailed comparison of DivX Video and YUV4MPEG2 — file size, quality, compatibility, and which format to choose for your workflow.
DivX Video
Video FilesDivX is a video codec and container format based on MPEG-4 ASP that gained popularity in the early 2000s for compressing DVD-quality video to CD-size files. DivX-certified devices and players still support the format worldwide.
About DIVX filesYUV4MPEG2
Video FilesYUV4MPEG2 (Y4M) is a simple uncompressed video format that stores raw YUV pixel data with a minimal header. It is widely used as an intermediate format for video processing and quality benchmarking where no compression artifacts are acceptable.
About Y4M filesStrengths Comparison
DIVX Strengths
- Massively efficient for the early-2000s era — 700 MB for a full movie was revolutionary.
- Universal desktop playback via Windows Media Player + DivX codec pack.
- Spawned a hardware ecosystem — DivX-certified DVD players.
- Open-source fork XviD keeps the format alive.
Y4M Strengths
- Uncompressed raw YUV — codec benchmark truth.
- Dead-simple header.
- Universal codec development support.
Limitations
DIVX Limitations
- Patent-encumbered (MPEG-4 Part 2 patents).
- Obsolete — H.264 and HEVC compress 2-3× better.
- Quality degrades noticeably on fast-motion scenes.
- Tied to the aging AVI container and its 4 GB file size limit.
Y4M Limitations
- Enormous file sizes.
- Development-only — not for consumption.
- No metadata beyond basic stream params.
Technical Specifications
| Specification | DIVX | Y4M |
|---|---|---|
| MIME type | video/x-divx | video/x-yuv4mpeg2 |
| Extensions | .avi (container), .divx (branded) | — |
| Codec | MPEG-4 Part 2 Advanced Simple Profile | — |
| Typical container | AVI | — |
| Open-source fork | XviD (patent-free) | — |
| Extension | — | .y4m |
| Pixel format | — | YUV 4:2:0, 4:2:2, 4:4:4 |
| Header | — | ASCII single line |
Typical File Sizes
DIVX
- 90-min movie (700 MB DivX target) ~700 MB
- 45-min TV episode (DivX rip) 350-500 MB
Y4M
- 10 sec 1080p Y4M ~600 MB
- 1 min 4K Y4M ~14 GB
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Convert between DIVX and Y4M online, free, and without installing anything. Encrypted upload, automatic deletion after 60 minutes.
Frequently Asked Questions
DIVX (DivX Video) is a video container format that bundles one or more video streams, audio tracks, and optional subtitles into a single file. The container format determines how metadata is organised and which codecs can live inside; the visual quality itself depends on the codec (H.264, H.265, VP9, AV1) rather than the DIVX wrapper. It is part of the video files family.
DIVX (DivX Video) is a video container formato that bundles one ou more video streams, audio tracks, e optional subtitles em a single file. The container formato determines how metadata is organised e which codecs can live inside; the visual quality itself depende de the codec (H.264, H.265, VP9, AV1) em vez de the DIVX wrapper. It is part of the video arquivos family.
VLC, MPV and PotPlayer play nearly every DIVX file on desktop. Browser support varies: modern Chromium, Firefox and Safari play common containers via the HTML5 <video> tag, but niche DIVX variants may fail. If a device refuses your DIVX, convert to MP4 with our DIVX to MP4 converter for universal playback.
VLC, MPV e PotPlayer reproduzir nearly every DIVX arquivo on desktop. Browser support varies: moderno Chromium, Firefox e Safari reproduzir common containers via the HTML5 <video> tag, mas niche DIVX variants may fail. If a device refuses your DIVX, converter to MP4 com our DIVX to MP4 converter para universal playback.
Upload your DIVX to KaijuConverter and pick MP4, MOV, MKV, WebM, or any other target. Our pipeline uses FFmpeg under the hood and stream-copies when codecs are compatible (no quality loss) or transcodes at high-quality defaults otherwise. Conversion runs server-side; both files delete within two hours.
Only when the target requires re-encoding. If the codecs inside DIVX match what the target container supports, FFmpeg stream-copies the streams and the output is bit-identical to the source. Transcoding uses transparent quality defaults (CRF 20–23 H.264) and produces output indistinguishable from the original at normal viewing distance.