MPEG-2 to AVCHD Converter

MPEG-2 to AVCHD Converter

MPEG-2 is the DVD-and-broadcast video standard (ISO/IEC 13818, also known as H.262), usually carrying standard-definition footage in a .mpeg or .mpg file. AVCHD is the consumer HD camcorder format Sony and Panasonic introduced in 2006: H.264/AVC video with AC-3 or LPCM audio, wrapped in an MPEG-2 transport stream and saved as .mts or .m2ts. This converter transcodes the MPEG-2 video to the AVCHD (H.264) stream so it slots into an AVCHD-authoring tool or a camcorder/player library that expects that format.

One honest caveat up front: converting standard-definition MPEG-2 to AVCHD does not make the footage true HD. Upscaling stretches existing pixels — it cannot recover detail the original DVD or broadcast capture never recorded. AVCHD is just the output wrapper here, not a quality upgrade. If you only need a file that plays everywhere, MP4 (H.264) is simpler and more universal than AVCHD.

MPEG-2 Format at a Glance

AVCHD Format at a Glance

How to Convert MPEG-2 to AVCHD

1. Upload Your MPEG-2 File: Drag and drop your .mpeg or .mpg file onto the page, or click "Add Files." You can queue several clips and convert them with the same settings.
2. Pick a Quality Preset: The Preset control defaults to "Very High (Recommended)." Leave it there to preserve detail, or step it down to shrink the output — AVCHD output stays within the format's H.264 bitrate ceiling either way.
3. Set the Resolution: Use the resolution presets or "Keep original." Note that picking a 1080p preset on standard-definition source upscales it; it does not add real detail, so "Keep original" is usually the honest choice.
4. Convert and Download: Click "Convert" and download the .mts file. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. No sign-up, no watermark.

Frequently Asked Questions

Will converting MPEG-2 to AVCHD turn my standard-definition video into HD?

No. AVCHD is an HD-capable format, but the conversion only re-encodes the pixels you already have. Standard-definition MPEG-2 (typically 720×480 or 720×576) can be stretched to a 1080p frame, yet upscaling cannot invent detail the original recording never captured. The result is an AVCHD-formatted file at HD dimensions, not genuinely higher-resolution footage.

Why is my AVCHD audio re-encoded instead of copied?

AVCHD is a strict specification that allows only Dolby AC-3 or uncompressed linear PCM audio. If your MPEG-2 file carries MP2 audio — common on DVDs and broadcast captures — it has to be re-encoded to a compliant track so the output plays in AVCHD-aware players and authoring tools. MPEG-2 that already uses AC-3 is closer to spec, but a re-encode may still happen to meet AVCHD's sampling and channel rules.

Is the .mts file the converter produces a playable AVCHD disc?

Not on its own. A bare .mts or .m2ts is just the AVCHD video stream. For camcorder or Blu-ray player playback you need the full BDMV/AVCHD folder structure — the BDMV and STREAM directories with their index and playlist files — which an AVCHD-authoring application builds around the stream. The file from this converter is the stream you feed into that authoring step or import into a non-linear editor.

Should I just convert MPEG-2 to MP4 instead?

For general playback and sharing, yes. MP4 with H.264 video plays on virtually every phone, browser, and TV without the AVCHD spec's audio and folder-structure constraints. Choose AVCHD only when a specific tool, camcorder, or disc-authoring workflow asks for it; otherwise convert MPEG-2 to MP4 is the simpler target.

Does AVCHD compress better than the original MPEG-2?

Usually, yes. AVCHD uses H.264/AVC, which is a generation newer than MPEG-2's H.262 and is more efficient at a given quality. In our testing, re-encoding a standard-definition MPEG-2 clip to AVCHD at the same visual quality produced a noticeably smaller file, because H.264 packs the same frames into fewer bits. The trade-off is that any re-encode is lossy, so keep the quality preset high if you plan further editing.

Can I edit the AVCHD output in Premiere Pro or DaVinci Resolve?

Yes. AVCHD's H.264 stream in an MPEG-2 transport stream is a standard import format for Premiere Pro, Final Cut Pro, and DaVinci Resolve, which is one of the main reasons people target it from a camcorder workflow. If your editor prefers an all-in-one container, an AVCHD-to-MP4 conversion afterward keeps the H.264 video while swapping to the more editor-friendly MP4 wrapper.

What is the difference between .mts and .m2ts?

They hold the same AVCHD data; the difference is where the file lives. .mts is the extension a camcorder writes to its own memory card, while .m2ts is the name the same stream takes once it is imported to a computer or copied into the disc's BDMV/STREAM folder. Both are AVCHD — H.264 video in an MPEG-2 transport stream — so a player that opens one generally opens the other.

Renaming the extension alone does not change the contents, so if a program refuses a .mts file, try copying it to .m2ts (or the reverse) before assuming the file is damaged.

Why might my standard-definition MPEG-2 be upscaled for AVCHD?

The AVCHD specification only defines HD resolutions — 720p and 1080i/1080p — so a strictly compliant AVCHD stream needs an HD frame. That is why an SD MPEG-2 source (720×480 or 720×576) is scaled up when a camcorder or Blu-ray authoring tool enforces the spec. Our converter can also keep the original SD size as an H.264 stream in the AVCHD transport-stream wrapper, but if your authoring tool rejects non-HD input, choose a 720p or 1080i preset — accepting that upscaling stretches pixels rather than adding real detail.