Xvid to MTS

How to Convert Xvid to MTS Online

1. Upload Your Xvid File: Drag and drop, or click "+ Add Files" to select your .avi (Xvid-encoded) video. Multiple files convert in a single batch.
2. Pick Quality Preset or Bitrate Mode: Default is "Very High (Recommended)" — a CRF-based H.264 setting that targets near-original visual quality at AVCHD-grade bitrates. For more control, switch to Constant Bitrate (e.g., 16-24 Mbps for 1080p AVCHD parity), Variable Bitrate, Constant Quality (CRF 18-23 is the sweet spot), Constraint Quality, Specific file size, or Target file size as a percentage.
3. Set Resolution (Optional): Keep original, scale by Resolution Percentage, pick a Preset Resolution (1920×1080, 1280×720, 720×480, etc.), or enter exact Width × Height. AVCHD's native ladder is 1920×1080 (1080p), 1440×1080 (1080i anamorphic), and 1280×720 (720p) — match one of these to stay inside the spec.
4. Trim and Convert: Optionally pick "Time Range" under Trim and enter a start time + duration. Click Convert. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared.

Why Convert Xvid to MTS?

Xvid is an MPEG-4 Part 2 Advanced Simple Profile codec, almost always wrapped in an AVI container — a popular SD-era format from the early 2000s. MTS is the on-camcorder file extension for AVCHD (Advanced Video Coding High Definition), the H.264 + Dolby AC-3 transport-stream format Sony and Panasonic introduced in 2006 for consumer HD camcorders. Converting Xvid to MTS bridges legacy SD content into AVCHD-aware editing and authoring workflows.

• Sony Vegas Pro / Movie Studio AVCHD timelines — Older Vegas projects built around an AVCHD camcorder ingest expect MTS clips at 1920×1080 or 1280×720 with H.264 video and AC-3 audio. Converting Xvid to MTS lets you drop archival footage onto the same timeline without forcing Vegas to mix incompatible codecs.
• Blu-ray authoring with TMPGEnc Authoring Works, multiAVCHD, or DVDStyler — Blu-ray and AVCHD-disc authoring tools accept MTS/M2TS as a native input. An Xvid AVI is not Blu-ray-compliant; an MTS at 1080i with AC-3 audio is.
• Folder-replay on Sony/Panasonic/Canon/JVC camcorders — AVCHD camcorders look for MTS files inside the \AVCHD\BDMV\STREAM\ folder. Converting and dropping in a properly muxed MTS lets you replay or transfer legacy footage through the camcorder's own playback chain.
• Hardware media players and AVCHD-capable Smart TVs — Many older Sony Bravia, Panasonic Viera, and Samsung TVs index AVCHD folders from a USB stick. MTS plays; an Xvid AVI often does not.
• Archival and standards alignment — If your archive is already AVCHD-organized (folder structure, AC-3 audio track, H.264 stream), bringing in stragglers as MTS keeps the library homogeneous for batch tools, transcoders, and metadata scrapers.

Xvid (AVI) vs MTS (AVCHD) — Format Comparison

Quality Preset Quick Guide

For a fixed bitrate target instead, AVCHD 1.0's 24 Mbps cap is a reasonable upper bound for 1080p; 16-18 Mbps is the typical camcorder default.

Frequently Asked Questions

Why convert Xvid to MTS instead of just renaming the file?

The container, codec, and audio stream all change. Xvid stores MPEG-4 Part 2 video inside an AVI; MTS wraps H.264 video plus AC-3 audio in an MPEG-2 Transport Stream. Renaming an .avi to .mts produces a file that AVCHD tools, camcorders, and Blu-ray authoring software will reject because the bytes inside still describe an AVI/MPEG-4 ASP stream. A real conversion re-encodes the video to H.264 and re-muxes audio into the transport-stream container.

Will the converted MTS import cleanly into Sony Vegas Pro?

Vegas Pro 12 and newer handle AVCHD MTS natively — drop the file on the timeline and match project properties to the clip's resolution and frame rate. Older Vegas releases sometimes choke on long-GOP H.264 from MTS; in that case, transcoding to a Vegas-friendly intermediate (DNxHD/HD MOV or MPEG-2) is more reliable than fighting the import. The conversion produced here is a standard AVCHD-style MTS, not a re-wrapped intermediate.

What resolution should I pick for AVCHD compatibility?

Stick to the AVCHD ladder: 1920×1080 (1080p), 1440×1080 (anamorphic 1080i), or 1280×720 (720p). AVCHD 2.0 (2011) added 1080p50 and 1080p60 modes. Non-standard resolutions still play in software like VLC, but AVCHD-aware tools (multiAVCHD, camcorder folder replay, some Blu-ray authoring suites) may reject anything outside the ladder.

What audio codec does the output use?

Standard AVCHD MTS uses Dolby AC-3 (also branded Dolby Digital), typically at 256-448 kbps stereo or 5.1. Linear PCM is also valid in the AVCHD spec but is rarely used outside professional contexts. The conversion targets AC-3 by default for maximum playback compatibility.

Can I keep the file size small while still hitting AVCHD quality?

Yes — pick Constant Quality (CRF) at 20-23 instead of a fixed-bitrate target. CRF lets H.264's rate control allocate bits where the picture needs them and strip bits from static scenes, so a 30-minute talking-head clip ends up dramatically smaller than a 30-minute action sequence at the same perceived quality. If you need a hard size cap, use Specific file size or Target file size (%).

Is MTS the same as M2TS?

Both are AVCHD transport-stream files with H.264 video and AC-3 audio. The convention is that camcorders write .MTS directly to their internal \AVCHD\BDMV\STREAM\ folder, while AVCHD discs and BD-aware import tools (Sony PMB, Panasonic HD Writer) rename them to .m2ts after ingest. The bytes are essentially identical; the extension records where the file currently lives in the workflow.

Will the file play on a Sony or Panasonic AVCHD camcorder?

In theory, yes — drop the MTS into the camcorder's \AVCHD\BDMV\STREAM\ folder on the SD card with the matching index files updated. In practice, many camcorders re-scan only on power-up and are picky about index integrity. A safer path is to play the MTS through a TV or PC; replay-on-camcorder is reliable mainly when you also use a dedicated AVCHD authoring tool (e.g., multiAVCHD) to rebuild the playlist and clip-info files alongside it.

What plays MTS files without conversion?

VLC, MPC-HC, MPC-BE, PotPlayer, and Kodi play AVCHD MTS natively on Windows, macOS, and Linux. Windows 10/11's built-in Movies & TV app plays MTS via the bundled HEVC/AVC decoders. Most Sony Bravia, Panasonic Viera, Samsung, and LG TVs play MTS from a USB stick when the file is in \AVCHD\BDMV\STREAM\ or, on more recent firmware, from any folder.

Is there a reverse path if I need Xvid back later?

Yes — see MTS to MP4 for the most common modern target, or pair it with a separate AVI/Xvid conversion. For trimming first and converting second, Video Cutter handles MTS and AVI inputs. To compress without changing the format, see Compress MTS or Compress Xvid.