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Supports: MP4, M4V
If you only need the video to play somewhere — a phone, a browser, a smart TV, a modern editor — keep the H.264 stream your M4V already holds and use M4V to MP4; that is nearly a container rename and keeps the file small. Convert to MPEG-2 only when a specific legacy target demands it: DVD-Video authoring, a standalone set-top player, or a broadcast/capture system that literally cannot decode H.264. This page makes that MPEG-2 file when you actually need it.
| Property | M4V (source) | MPEG-2 (output) |
|---|---|---|
| Video codec | H.264 / AVC | MPEG-2 (ISO/IEC 13818) |
| Standard year | H.264 finalized 2003 | MPEG-2 standardized 1995 |
| Audio | AAC (sometimes AC-3) | MP2 (default), MP3 or AC-3 selectable |
| Compression efficiency | High | Lower — needs roughly 2x the bitrate for the same look |
| Typical file size | Smaller | Larger at matched quality |
| Plays in DVD players | No (DVD-Video can't read H.264) | Yes (DVD-Video's required codec) |
| Plays on phones / browsers | Yes, virtually everywhere | Not natively; needs VLC or similar |
| Copy protection | Optional Apple FairPlay DRM | None |
| Best for | Apple-ecosystem and modern playback | DVD authoring, legacy MPEG-only hardware |
.m4v onto the page or click "+ Add Files" to browse. Batch upload is supported, so you can queue several clips and convert them with the same settings..mpeg2 file. No sign-up, no watermark.Not really — for efficiency, no. H.264 (the codec inside your M4V) is the more advanced format: it needs roughly half the bitrate of MPEG-2 for the same perceived quality, so an equal-quality MPEG-2 file is typically about twice the size. The one thing MPEG-2 is "better" at is being accepted by hardware that predates H.264 — DVD players, older set-top boxes, and some broadcast gear. If your target can play H.264, stay on it; choose MPEG-2 purely because a legacy device or DVD-authoring tool requires it.
You can, because this is a downconvert into an older codec. The H.264 picture is fully decoded and re-compressed into MPEG-2 from scratch — lossy to lossy, so nothing is ever regained. At the same file size the MPEG-2 output holds less detail; to keep it looking close to the source, give MPEG-2 a generous bitrate (5-8 Mbps for standard definition, more for HD). In our testing, a 720x480 H.264 M4V re-encoded to MPEG-2 at 6 Mbps looked indistinguishable from the source on a TV, while the same clip at 2 Mbps showed visible blocking.
Not as AAC. A DVD/MPEG program stream uses MP2 (MPEG-1 Audio Layer II) by default, with AC-3 (Dolby Digital) or MP3 also available — so the AAC track is re-encoded to one of those. For a physical-disc workflow, MP2 or AC-3 is the safer pick because that is what DVD-Video and set-top players expect; MP3 plays in general MPEG players but is less standard for disc authoring. The audio is transcoded, not copied, so set the codec your target tool wants before converting.
No. Movies and TV shows bought or rented from the iTunes Store are often wrapped in Apple's FairPlay copy protection, which restricts playback to devices authorized with the purchasing Apple account. A FairPlay-protected M4V cannot be decoded by any converter, so the conversion fails. Only DRM-free M4V files — your own screen recordings, exports, camera footage, or downloads that were never encrypted — can be converted to MPEG-2.
Match the DVD-Video standard: 720x480 for NTSC (North America, Japan) or 720x576 for PAL (most of Europe, Australia). Set these under Video resolution → Width x Height, or choose the matching preset. If your source is HD, downscaling to 480p/576p before authoring keeps the MPEG-2 bitrate working on a frame size it handles well and avoids the disc tool re-scaling it. DVD-Video peaks near 9.8 Mbps; 5-8 Mbps is a clean sweet spot for standard-definition content.
.mpeg or .mpg?Effectively yes — .mpeg2, .mpeg, and .mpg all hold an MPEG program stream with MPEG-2 video, and the extensions are interchangeable for most tools. We offer M4V to MPEG and M4V to MPG for the identical conversion under those filenames; pick whichever extension your DVD-authoring tool or device expects. If you later need to bring the clip back into the Apple ecosystem, that round trip is still lossy and never restores detail lost in the first pass.
Your M4V is uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after the conversion — no sign-up, no watermark, never shared or made public.