DivX to AVCHD Converter

Convert DivX to AVCHD: What This Tutorial Covers

DivX is an MPEG-4 Part 2 video (usually in an AVI container with MP3 audio), and it is normally standard-definition. AVCHD is the HD camcorder format Sony and Panasonic introduced in 2006 — H.264/AVC video carried in an MPEG-2 transport stream (.mts / .m2ts) with Dolby AC-3 or LPCM audio. This page walks through transcoding a DivX file into an AVCHD-style .mts, and it is honest about the three things that trip people up: the audio codec, what "HD" actually means here, and what a bare .mts is versus a real AVCHD disc.

How to Convert DivX to AVCHD

1. Upload Your DivX File: Drag and drop your .divx or .avi file onto the page, or click "+ Add Files" to browse. You can queue several files and convert them with the same settings.
2. Set the Audio Codec to AC3: Open Advanced Options. The output defaults to the H.264 Video Codec, which AVCHD requires. Set the Audio Codec to AC3 so the file matches the AVCHD/Blu-ray spec rather than AAC.
3. Pick a Resolution and Quality Preset: Use Preset Resolutions (1280x720 or 1920x1080) for HD playback, and leave the Preset on "Very High (Recommended)" or raise the bitrate for cleaner motion.
4. Convert and Download: Click "Convert" and download your .mts file. No sign-up, no watermark.

Walk-through: Getting a Spec-Correct AVCHD File

AVCHD is the strictest part of this conversion, because it is a narrow subset of the Blu-ray standard rather than a flexible container. Two stream choices decide whether a player accepts the file:

• If you want a file a standalone Blu-ray or AVCHD player will accept, set Audio Codec to AC3. The AVCHD spec only allows Dolby AC-3 or uncompressed LPCM audio. An .mts with AAC audio will often play in VLC but be rejected by hardware players and camcorder software.
• If you only need it to play in a media player on a computer, the audio codec matters less — VLC, MPC-HC, and PotPlayer will play H.264 in an MTS container regardless of the audio track.
• If the source is standard-definition DivX, choosing 1920x1080 only upscales it. It stretches the existing pixels to fill an HD frame; it cannot add detail the original recording never captured. A 720x480 DivX looks like 720x480, padded out.

Common Errors and How to Fix Them

• "My Blu-ray player won't accept the .mts file" — The audio is probably AAC. Re-convert with Audio Codec set to AC3, which is what the AVCHD/BDAV spec mandates.
• "The video looks soft or blocky after upscaling" — An SD DivX source has no HD detail to recover. Keep the output at or near the source resolution (480p/576p) and raise the bitrate instead of forcing 1080p.
• "The file plays on my PC but not on the camcorder/TV" — A loose .mts is just the stream. Authoring software (a tool that writes the BDMV/STREAM folder structure) is what turns it into a playable AVCHD disc or card.
• "Audio and video drift out of sync" — This usually traces to a variable frame rate in the original DivX. Try a fixed resolution preset and a constant bitrate so the transcode re-times cleanly.

When This Doesn't Work

If your goal is simply to play the video on a modern phone, TV, browser, or editor, AVCHD is the wrong target — it is a 2006 camcorder/disc format with awkward hardware requirements. Convert to MP4 instead: it is H.264 too, far more compatible, and smaller. Use AVCHD only when you specifically need to feed a Blu-ray authoring workflow or an older AVCHD-aware device. Also note that a .mts produced here is a re-encode of your DivX, so it carries generation loss; if you later want a universal copy, go straight from your DivX source to MP4 rather than re-converting the .mts.

Frequently Asked Questions

Does the AVCHD output use AC-3 audio by default?

For an .mts/AVCHD target the audio codec defaults to AC3, which is what the AVCHD spec allows alongside uncompressed LPCM. In our testing, leaving the codec on AC3 produced files that VLC, MPC-HC, and AVCHD-aware players all accepted, whereas an AAC track was rejected by hardware Blu-ray players. If you change it, switch it back to AC3 before downloading for disc use.

Will converting DivX to AVCHD make my video HD?

No. AVCHD is a high-definition container, but it cannot create detail your source never had. A standard-definition DivX file (typically 480p or 576p) only gets upscaled to fill an HD frame — the picture is stretched, not sharpened. The footage is genuinely HD only if the original DivX was already recorded in HD.

Is the .mts file I download a complete AVCHD disc?

No. The file you get is the AVCHD video stream itself. A finished, player-ready AVCHD disc or memory card also needs the BDMV/STREAM folder structure and metadata, which authoring software writes. The .mts is the right input for that authoring step, but it is not the finished disc on its own.

Why would I convert DivX to AVCHD instead of MP4?

Mostly compatibility with older camcorder software and Blu-ray/AVCHD authoring workflows that expect H.264 in an MPEG-2 transport stream with AC-3 audio. For everyday playback on phones, TVs, browsers, and editors, MP4 is the better choice — same H.264 video, broader support, and smaller files.

What is the difference between .mts and .m2ts?

There is no functional difference in the stream — both wrap AVCHD video. By convention, camcorders write .mts when you copy files directly off the device, while .m2ts is the name used once the video is imported through software like PlayMemories Home or written to a disc structure.

Is the conversion private and free?

Yes. It is free with no sign-up and no watermark. Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — never shared or made public.