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Supports: XVID
.avi containing the Xvid stream (or a .xvid file). Batch uploads are supported — every file inherits the same settings.Xvid and DivX are sibling implementations of the same standard — MPEG-4 Part 2 Advanced Simple Profile. Xvid is GPL-licensed open-source software that forked from OpenDivX in 2001 after DivX Networks closed the original codebase. DivX is the commercial line maintained by DivX, LLC, which also runs the DivX Certified hardware program — a licensing scheme that sets bitstream limits players promise to decode. The two streams are spec-compatible, but certified DVD and Blu-ray players are tested against DivX-encoded files, so re-encoding from Xvid to DivX (and stripping risky encoder options) is the standard fix when an Xvid disc skips, freezes, or refuses to load on living-room hardware.
.divx and .avi (DivX) are the file extensions DivX-branded software and devices look for first. The container/codec match removes a layer of guesswork.| Property | Xvid | DivX |
|---|---|---|
| Standard | MPEG-4 Part 2 ASP | MPEG-4 Part 2 ASP (also DivX Plus = H.264, DivX HEVC = H.265) |
| License | GPL, free | Proprietary, DivX, LLC |
| Initial release | 2001 (forked from OpenDivX) | 1999 (DivX 3); 2001 (DivX 4 reboot) |
| Reference encoder | xvidcore / Xvid project |
DivX Encoder (Windows / macOS) |
| Default container | AVI (also OGM, MKV) | AVI (DivX 5–6); MKV (DivX Plus 7+); DIVX |
| Hardware certification | None | DivX Certified: Home Theater, Plus HD, HEVC, HEVC Ultra HD |
| Default audio in xconvert | MP3 | MP3 |
| Quality at low bitrate | Slightly better in many tests | Comparable; DivX 6 closed most of the gap |
| Encoder speed | Slower | Faster |
For the ASP layer of both codecs the bitstream is interoperable; certification, tooling, and licensing are what diverge.
| Encoder feature | Safe on DivX Home Theater? | What to do for this conversion |
|---|---|---|
| Global Motion Compensation (GMC) | No | Disabled by xconvert defaults; do not enable. |
| Quarter-Pixel Motion (Qpel) | No | Leave off. |
| Packed bitstream + multiple consecutive B-frames | No | Re-encode (this tool re-encodes — does not just remux). |
| Resolution above 720x480 / 720x576 | Often no on Home Theater | Pick a preset at or below SD. |
| Bitrates above ~4 Mbps for SD / ~8 Mbps for HD | Sometimes rejected by VBV limits | Cap CBR at 4 Mbps or set VBR max to 8 Mbps. |
Source: DivX Certification profile documentation and the Xvid project's own playback notes.
The bitstream itself is the same standard, so a software player that decodes one decodes the other. The differences live above the bitstream: DivX is a commercial product line with a hardware certification program, a proprietary muxer that writes DIVX/AVI files certified players are tested against, and (in DivX Plus and DivX HEVC) different codecs in MKV. Xvid is a GPL-licensed encoder that sticks with MPEG-4 Part 2 and ships no certification.
Often, but not reliably. DivX explicitly notes that Xvid streams using advanced ASP features — GMC, Qpel, packed bitstream, multiple consecutive B-frames, or files that bust the Video Buffering Verifier — will fail on DivX-certified hardware. Plain-vanilla Xvid AVIs at SD resolution usually play; anything an Xvid encoder produced with default-on advanced flags is a coin toss. The conversion exists to remove that uncertainty.
Almost always because of one of three encoder features: packed bitstream (puts two frames in one chunk to fit older AVI parsers), Qpel (quarter-pixel motion vectors), or GMC (global motion compensation). Most certified set-tops decode profile-compliant ASP only. Re-encoding the file to DivX with those flags off — which xconvert does by default — clears the rejection.
Yes — every re-encode is generation loss. For Xvid ASP → DivX ASP at Constant Quality CRF 5 or VBR ~4 Mbps the loss is small and usually invisible at SD resolutions, but it is not zero. If the goal is just compatibility and the source bitrate is already modest, set Constant Quality (CRF 1–5) rather than Constant Bitrate so the encoder spends bits where they're needed.
If your target hardware is anything bought after roughly 2013, yes — H.264 in MP4 is more universally supported, smaller at the same quality, and better-tooled. Use Xvid to MP4 for that path. Stay on DivX only if you specifically need a pre-2014 DivX-Certified standalone DVD player, in-car DVD unit, or a Blu-ray deck that lists DivX on the spec sheet.
xconvert defaults to MP3, which is the historic AVI/DivX audio pairing certified players expect. AC-3 (Dolby Digital) is also in the DivX Home Theater spec, but MP3 is the safest bet across the largest pool of older hardware.
No, and this is a common confusion. DivX and Xvid are different encoders even though they target the same standard. A "rename" or remux from .xvid/AVI to .divx/AVI doesn't recompress the video, so the original Xvid bitstream — including any Qpel/GMC/packed-bitstream features that are causing the player to fail — is still present. The conversion here actually re-encodes through a DivX-profile-clean encoder.
Soft-subtitles (e.g., .srt, .idx/.sub) and chapter metadata are not part of the Xvid video stream, so they're not carried by a video-only conversion. If the AVI has hard-burned subtitles they remain visible because they're already pixels. For files where subtitle preservation matters, Xvid to MKV keeps soft subs as separate tracks.
Yes — same generation-loss principle. Stay one direction unless there's a reason to round-trip. If you do need to go the other way (e.g., re-editing in open-source pipelines that prefer Xvid), DivX to Xvid handles it.