DVR to MTS Converter

Convert DVR to MTS: What This Tutorial Covers

A .dvr file is a recording from a digital video recorder — most often a .dvr-ms file created by Windows Media Center (MPEG-2 video with MP2 or Dolby Digital AC-3 audio), though the same extension is also used by some set-top boxes and surveillance / CCTV systems. MTS is the camcorder-side extension of AVCHD, the HD recording format Sony and Panasonic introduced in 2006: H.264 video and AC-3 audio multiplexed into an MPEG transport stream. This guide covers when converting to MTS actually makes sense (it is a narrow case), how to set the codec and resolution, and what to do when a DVR file refuses to convert. Before you start, the honest steer: most people who land here want a normally playable video, and for that DVR to MP4 is the better target — MTS is worth choosing only for a specific AVCHD editing workflow described below.

How to Convert DVR to MTS

1. Upload Your DVR File: Drag and drop the .dvr (or .dvr-ms) recording onto the page or click "+ Add Files". You can queue several recordings and they convert with the same settings. Only files a normal media player can open are reliably decodable — copy-protected DVR-MS recordings and proprietary CCTV dumps may not be (see "Common Errors").
2. Set the Video Codec: Open Advanced Options. Video Codec defaults to H.264, which is what AVCHD/MTS expects — leave it there for a standards-correct MTS file. Audio Codec defaults to AAC; switch it to AC3 if your target player or NLE expects classic AVCHD audio.
3. Choose Resolution and Quality (Optional): Use Preset Resolutions (4320p down to 144p, height-only — the width follows the recording's aspect ratio), an exact Width × Height, or Resolution Percentage to set the frame size, and Quality Preset (or Specific file size / Bitrate) to control size versus fidelity. Use Trim to keep only the segment you need rather than encoding the whole recording.
4. Convert and Download: Click "Convert" and save the .mts file individually or as a ZIP. No sign-up, no watermark.

Walk-through: Why MTS, and How to Set It Up

MTS is a niche conversion target. The mainstream reason to produce one is an AVCHD editing workflow: some non-linear editors (and a few older camcorder-companion tools) ingest AVCHD-style .mts files cleanly, so wrapping a recording as MTS can slot it into that pipeline. If you do not have that specific need, a .mts file is simply a less compatible container than MP4 holding the same H.264 video — .mp4 plays in browsers, on phones, and in nearly every editor, while .mts does not.

If MTS is genuinely what you need, match the settings to AVCHD's expectations:

• Keep the video codec on H.264. AVCHD is defined around H.264; this converter offers other codecs for the MTS container, but H.264 is the standards-correct choice and the one editors expect.
• For AVCHD-style audio, pick AC3. Real AVCHD uses Dolby Digital (AC-3); AAC also works in the transport stream and is the default here, so only switch to AC3 if a downstream tool insists on it.
• Don't expect an upscale. A Windows Media Center recording of standard-definition TV is SD; setting a 1080p resolution stretches the frame but invents no real detail. Match the resolution to the source unless a workflow demands a fixed frame size.
• To control size, use Specific file size or set an explicit Bitrate rather than a percentage target, which keeps the encoder from over-compressing when the container changes.

A note on quality you cannot get back: a DVR-MS recording carries MPEG-2 video, and converting it to H.264 is a lossy-to-lossy transcode. The new file is re-encoded from already-compressed video, so it cannot recover detail the MPEG-2 encoder discarded — at best it matches the source; pushing the bitrate far above what the original held only grows the file.

Codec Choices for MTS Output

The MTS container on this page is an MPEG transport stream, and the Advanced Options only offer codecs that stream can legally carry. Here is what you can actually pick and what each choice means:

MTS vs MP4 vs MKV as a Target

A Note on CCTV Footage and Evidence Use

If your .dvr came from a security camera or surveillance DVR, two cautions apply. First, many of these systems write a proprietary, sometimes encrypted container that only the manufacturer's own player or export tool can read — a general-purpose converter cannot open it directly. If the file will not load here, export a standard file from the device's own software first, then convert that. Second, treat any converted .mts as a working copy, not a legal record. A general-purpose converter produces a playable video; it does not establish chain of custody. For evidence use, export the original recording through the DVR vendor's own software, preserve that original untouched, and document how any working copy was produced.

Common Errors and How to Fix Them

• "The file won't upload or convert at all" — The .dvr extension is shared by unrelated systems. A Windows Media Center .dvr-ms recording is the well-supported case; a proprietary file from a CCTV or satellite DVR may use a vendor-specific, sometimes headerless container that standard tools can't read. Export a standard file from the device's own software first.
• "My recorded TV file is copy-protected" — Windows Media Center flagged some broadcasts as protected; per Microsoft's documentation those .dvr-ms files are encrypted and play back only on the PC that recorded them, so they can't be converted elsewhere. Export an unprotected copy from the source PC.
• "The MTS won't play on my phone or in my player" — That is MTS's main limitation, not a conversion fault: .mts is a camcorder/editing container with thin consumer-device support. Convert to DVR to MP4 instead for a file that plays nearly everywhere.
• "The picture looks soft or blocky" — Either the source was standard-definition and a higher resolution was forced (which can't add detail), or the bitrate was set too low. Match the resolution to the source and raise the bitrate.

When This Doesn't Work

The honest limit is the source file, not the converter. A simple rule decides it: if a normal media player such as VLC can open the recording, it can be transcoded here; if VLC can't open it, neither can this tool. The two cases that genuinely fail are broadcaster-flagged copy-protected DVR-MS recordings (encrypted by design) and encrypted or headerless surveillance / satellite dumps that only the manufacturer's player reads — in both cases, export to a standard file from the device's own software first. And if you only want the soundtrack rather than the video, use DVR to MP3 instead.

Frequently Asked Questions

Should I really convert DVR to MTS, or to MP4?

For most people, MP4. MTS (AVCHD) is a camcorder and editing container with limited consumer-device playback, while MP4 holds the same H.264 video and plays in browsers, on phones, and in nearly every editor. Choose MTS only when a specific AVCHD editing workflow expects .mts input; otherwise DVR to MP4 is the more compatible result.

Will converting DVR to MTS improve the quality?

No — and that is a fact of the formats, not a tool limitation. A DVR-MS recording carries MPEG-2 video, and converting to the H.264 video MTS uses is a lossy-to-lossy transcode: the output is re-encoded from already-compressed video and cannot regain detail the original codec discarded. Standard-definition TV recordings also stay standard-definition; forcing a 1080p resolution stretches the frame without adding real detail.

What codec settings make a proper AVCHD-style MTS file?

Keep the Video Codec on H.264, which is the codec AVCHD is built around and the one editors expect. For audio, real AVCHD uses Dolby Digital, so switch the Audio Codec to AC3 if a downstream tool requires classic AVCHD audio; the AAC default also works inside the transport stream. AVCHD's container is an MPEG transport stream, which is exactly what an .mts file is.

Why won't my surveillance .dvr file convert to MTS?

Many security DVRs save a proprietary, sometimes encrypted container that only the manufacturer's own player or export utility can read, so a general-purpose converter can't open it directly. The fix is to export a standard file (often MP4 or AVI) from the camera system's own software first, then convert that file here. As a quick test, try opening the original in VLC — if VLC can't play it, this tool can't either.

Can I use a converted MTS clip from a security camera as evidence?

Treat it as a working copy, not a legal record. A general-purpose converter produces a playable video; it does not establish chain of custody. For evidence work, export the original recording through the DVR vendor's own software, preserve that original untouched, and document how any working copy was made — then a converted clip is something you produced from a preserved source rather than the record itself.

Can a DVR file be remuxed into MTS without re-encoding?

No — this conversion always re-encodes, and on this pairing it has to. A Windows Media Center .dvr-ms is an ASF-derived container holding MPEG-2 video, while .mts is an MPEG transport stream expecting H.264, so both the wrapper and the video codec change. There is no stream-copy path on this page in any case: every conversion decodes the source and encodes fresh output. Keeping the Quality Preset at Very High is what keeps that single generation of loss hard to see.

What is the difference between .mts and .m2ts?

Very little at the format level — both are MPEG-2 transport streams carrying H.264. The split is a naming convention: AVCHD camcorders write .mts files into the AVCHD/BDMV/STREAM folder on the memory card, while .m2ts is the extension used on Blu-ray discs and by a lot of import software when those clips are copied onto a computer. If a tool wants one and you have the other, the underlying stream is usually identical.

What happens to my file after the conversion?

Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after the conversion finishes. There is no sign-up, no watermark, and your files are never shared or made public. On a large recording, the practical limit is upload time, not a per-file size cap.