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Supports: MKV
MKV (Matroska, 2002) is the flexible open-source container the modern ripping and Plex / Jellyfin world standardized on — it carries any codec (H.264, H.265, AV1, VP9), unlimited audio tracks, soft subtitles, chapters, and metadata. MPEG-2 (ISO/IEC 13818-2, 1996) is the older codec baked into the DVD-Video spec and most broadcast workflows. Converting MKV to MPEG-2 is what you do when you need to take a modern rip back to a hardware-decodable format for DVD authoring, broadcast playout, or a legacy player that refuses anything newer.
| Property | MKV (Matroska) | MPEG-2 (.mpeg2 /.m2v /.mpg) |
|---|---|---|
| Standardized | Matroska, 2002 (open spec) | ISO/IEC 13818-2, 1996 |
| Container or codec | Container (codec-agnostic) | Video codec (carried in MPG/M2V/TS/VOB) |
| Typical video inside | H.264, H.265, AV1, VP9, MPEG-2, MPEG-4 | MPEG-2 only |
| Typical audio inside | AAC, AC-3, DTS, FLAC, Opus, Vorbis, TrueHD | MP2, AC-3, LPCM |
| Subtitles | Soft (SRT, SSA, PGS) — switchable | Not standard in elementary stream |
| Multiple audio tracks | Yes — unlimited, switchable | Typically one |
| Chapters / metadata | Native | None |
| DVD-authoring tool support | Limited — usually requires re-encoding | Native input |
| Browser playback | None natively | None natively |
| Hardware decoder coverage | Modern devices (depends on internal codec) | Every DVD player, STB, broadcast deck since 1996 |
| Typical bitrate (SD) | 1-3 Mbps (H.264) | 4-9 Mbps |
| Compression efficiency | 2-5× MPEG-2 (H.264 / H.265) | Baseline 1995 design |
| Output video codec | File size vs MKV source | Best for |
|---|---|---|
| MPEG-2 (default) | 2-3× the MKV size at matching quality | DVD authoring, broadcast, legacy hardware |
| MPEG-1 | Larger than MPEG-2 at matching quality | VCD-era players, embedded systems |
| MPEG-4 / DivX / Xvid | ~1.5× the MKV size | Older DivX / Xvid hardware boxes |
| H.264 | Same or smaller than MKV | If your target accepts H.264 in this container |
| H.265 / HEVC | ~50% of source | Modern decoders, smaller archives |
| Output audio codec | Notes |
|---|---|
| MP2 (default) | Standard MPEG audio — accepted by every DVD-authoring tool and broadcast deck |
| AC-3 (Dolby Digital) | Preserves 5.1 surround if the MKV has it; widely supported by authoring tools |
| AAC | Higher efficiency but not part of the DVD-Video spec — pick only if your downstream player accepts it |
| MP3 | Common for general playback; not DVD-Video-spec |
Yes. MPEG-2 is a different codec generation from H.265, so a re-encode is unavoidable — there's no remux path. The output will be 3-5× larger than the H.265 source at matching visual quality (a 1 GB H.265 MKV typically becomes a 3-4 GB MPEG-2 file at default settings). Pick the "Highest" quality preset or CRF 18 for an archival-quality re-encode, or accept the default ~4 Mbps CBR for a DVD-budget bitrate.
MPEG-2 elementary and program streams typically carry one video and one audio track — they don't have first-class slots for multiple audio languages or soft subtitles the way MKV does. The default conversion writes the first audio track and drops the others; soft subtitles (SRT, SSA, PGS) are dropped. If multi-track preservation matters, target a different container — see MKV to MP4 for an MP4 that keeps multiple audio tracks, or MKV to MOV for QuickTime workflows.
MPEG-2 if you're authoring a DVD-Video disc, feeding broadcast playout, or targeting any device that explicitly requires MPEG-2 — it's the only codec the DVD-Video spec accepts for video. MPEG-4 / Xvid / DivX produces ~30-50% smaller files at comparable quality and is the right pick for older DivX-certified DVD players, embedded car STBs, or generic playback on legacy hardware that lists DivX support. If unsure and the goal is DVD authoring, stay on the MPEG-2 default.
NTSC DVDs are 720×480 (USA, Canada, Japan), PAL DVDs are 720×576 (Europe, Australia, most of Asia). Picking either as a custom width × height matches the DVD-Video spec exactly. Resizing a 1080p or 4K MKV down to 720×480 is required for DVD playback — leave at 1080p / 2160p only if you're not authoring a disc and your downstream tool accepts higher MPEG-2 resolutions. Upscaling beyond the MKV's native dimensions doesn't recover detail and just inflates the bitrate.
Yes — pick AC-3 as the audio codec. AC-3 (Dolby Digital) is one of the audio formats the DVD-Video spec officially carries, and choosing it passes the MKV's AC-3 5.1 track through bit-for-bit. If the MKV has DTS, FLAC, TrueHD, or Atmos audio, those re-encode to AC-3 (loses Atmos object metadata but preserves channel count). MP2 (the default) is stereo-only.
There's no fixed cap — Conversion runs on our servers, so the limit is upload size and connection speed and upload patience. Multi-GB MKV rips (10-30 GB blu-ray or DVD rips, full-season packs) work fine on a desktop with 8 GB+ RAM. There's no quantity limit on batch jobs either, unlike the 100 MB free cap on Convertio and similar online competitors.
Use the Trim option once per episode. Set a start time and duration in HH:MM:SS.sss format (e.g., start 00:00:00, duration 00:24:30 for a 24-and-a-half-minute first episode, then 00:24:30 / 00:24:30 for the second), and run the conversion once per range. Each output is a clean MPEG-2 file that DVD-authoring tools accept as its own title or chapter. Merge later if needed with Merge Video.
Yes — see MPEG-2 to MKV for the reverse, useful if you're pulling DVD rips into a Plex / Jellyfin library. For modern targets, also see MKV to MP4 (universal playback) and MPEG-2 to MP4 (DVD-rip modernization).