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Supports: MKV
.divx (or rename to .avi) to a USB stick or DVD-R for the player.MKV (Matroska) is the modern open container that wraps H.264, H.265, and AV1 streams used by Blu-ray rips, anime releases, and 4K downloads. DivX is a late-90s/early-2000s MPEG-4 Part 2 codec that became a household name because it shipped inside millions of "DivX Certified" DVD players, set-top boxes, and car head units between 2003 and 2015. DivX-certified hardware can't decode H.264 or H.265 — it only understands MPEG-4 ASP. Re-encoding to DivX is the bridge that gets your modern MKV library back onto that legacy hardware.
.avi files to a DVD-R as data and the player reads them like any DivX disc — perfect for elderly relatives' setups or basement home theaters..avi plays back instantly.| Property | MKV (Matroska) | DivX (in AVI) |
|---|---|---|
| Container origin | Open Matroska standard (2002) | Microsoft AVI (1992) wrapped around MPEG-4 ASP (1999) |
| Video codec | H.264, H.265, AV1, VP9 (anything goes) | MPEG-4 Part 2 (DivX 3/4/5/6, Xvid) |
| Audio codecs | AAC, AC-3, DTS, FLAC, Opus, anything | MP3, AC-3, PCM (often MP3 in AVI) |
| Subtitle support | Multiple tracks (SRT, ASS, PGS) | None native — must burn-in or use external .srt |
| Multi-audio tracks | Yes — unlimited, language-tagged | Two max, no language tags |
| Chapter markers | Yes — full chapter list | None |
| Hardware DVD-player support | None — modern players need MKV firmware | Universal on DivX-certified hardware 2003-2015 |
| Typical file size (2 hours, 720p) | 2-4 GB (H.264) / 1.2-2 GB (H.265) | 1.5-2.5 GB (DivX) |
| Modern relevance | Standard for HD/4K video libraries | Legacy compatibility only |
| Codec | Notes | Pick this for |
|---|---|---|
| DivX (MPEG-4 ASP) | Closed-source historical leader; the logo on certified players | DivX-certified DVD players and set-top boxes 2003-2015 |
| Xvid | Open-source MPEG-4 ASP — bit-stream compatible with DivX certified hardware | Same hardware, when you want an open encoder; community AVI rips |
| MPEG-4 (Part 2 baseline) | Plain MPEG-4 SP/ASP without the DivX/Xvid profile tweaks | Older devices that predate DivX 4/5 certification |
| Profile | Max resolution | Max bitrate | Typical hardware |
|---|---|---|---|
| Home Theater | 720×576 (PAL) / 720×480 (NTSC) | 4 Mbps | 2003-2008 DVD players |
| High Definition | 1280×720 | 8 Mbps | 2008-2012 Smart TVs, set-top boxes |
| DivX Plus HD | 1920×1080 | 20 Mbps | 2010+ DivX Plus certified TVs |
Universal on phones, computers, and modern TVs — but not on DivX-certified DVD players, set-top boxes, and car DVD systems made between 2003 and 2015. Those devices have a DivX MPEG-4 ASP decoder chip and reject H.264. If your goal is playback on a Pioneer AVH head unit, a 2009 Samsung Smart TV with USB, or a basement Philips DVD player, DivX is the only codec the hardware understands. For everything else, convert MKV to MP4 instead.
DivX-certified hardware decodes both — Xvid is bitstream-compatible with the DivX MPEG-4 ASP profile. Pick DivX when matching files in an existing DivX library (consistent QPEL/GMC profile flags). Pick Xvid for new conversions where you want an open encoder. Pick MPEG-4 (Part 2 baseline) only for very old (pre-2004) certified devices that predate DivX 5.
Yes — that's the whole point of the certification. Format the USB as FAT32 (USB-aware players need FAT32, not exFAT or NTFS), drop the converted .avi files into the root, and most DivX-certified players index and play them. For DVD-R, burn as a data disc (UDF or ISO9660), not a Video DVD. Keep filenames under 64 characters and stick to ASCII for old firmware.
.divx or .avi?Functionally identical — both contain MPEG-4 ASP video inside an AVI-style container. Most DivX-certified hardware accepts both. .avi is safer for car head units and very old DVD players, since some early firmware only scans for .avi. Rename the output if your player ignores .divx files.
DivX inside AVI has no native subtitle track support. Two options: burn-in the subtitles before conversion (permanently part of the video), or save the MKV's subtitle track as an external .srt file with the same base name as the .avi (e.g., Movie.avi + Movie.srt). DivX-certified players that advertise external subtitle support load the .srt automatically.
Usually larger per minute of video, because DivX (MPEG-4 ASP) is roughly 2× less efficient than H.264 and 3-4× less efficient than H.265. A 1.2 GB H.265 MKV often becomes a 2-2.5 GB DivX AVI at the same visual quality. Lower the bitrate or downscale to 720p or 576p (DVD profile) to keep the file inside the disc/USB capacity you have.
The primary audio track converts. AVI supports a maximum of two audio streams without language tags, and most DivX-certified players only switch between the first two. Additional tracks are dropped. If you need language-switching, output a second AVI for the alternate audio or stick with the source MKV.
Yes. Use the trim section to enter a start time and duration. Both accept seconds (12.5) or HH:MM:SS.sss format (00:01:30.500). Trim out intros, recaps, or post-credits to fit a long movie onto a 4.7 GB DVD-R or a small USB stick.
Yes — drop in dozens of MKV files and they convert sequentially in your browser session. Each download is a separate .divx/.avi file. For a season of TV episodes, set the codec, bitrate, and resolution once and run the whole folder. Watch device memory if individual files are 4K MKVs over 5 GB — convert those one at a time to avoid running out of RAM.