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Convert MTS to FLV - AVCHD Camcorder Videos to Flash

Transform AVCHD camcorder footage to Flash video for web streaming and sharing.

Step 1: Upload your files

You can also Drag and drop files.

Step 2: Choose format
Step 3: Convert files

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AVCHD Videos Won't Stream Online?

MTS files from your Sony, Panasonic, or Canon camcorder are recorded in AVCHD format. While excellent for preserving high-definition quality, MTS files are bulky and not designed for web streaming or embedding on websites.

FLV (Flash Video) was the web streaming standard for years, and many legacy systems, custom video players, and archival workflows still rely on it. Converting MTS to FLV makes your camcorder footage compatible with these platforms.

How to Convert MTS to FLV

  1. Upload your MTS file - Drag and drop or select your AVCHD video from your camcorder
  2. Choose FLV as output - Flash Video format is selected for web compatibility
  3. Download your video - Get your converted FLV file ready for streaming

The entire process runs in your browser. No software installation required.

MTS vs FLV: Format Comparison

Understanding the differences helps you decide when this conversion makes sense:

  • MTS (AVCHD) - Uses H.264 video codec with Dolby AC-3 audio. Files are large but maintain full HD quality from camcorders
  • FLV (Flash Video) - Optimized for streaming with smaller file sizes. Uses Sorenson or VP6 codecs for efficient web delivery
  • File size - In our testing, FLV files are typically 40-60% smaller than the original MTS
  • Quality - Some quality loss occurs during conversion, but FLV maintains good visual quality for streaming purposes

When to Convert MTS to FLV

Legacy Web Players

If you maintain a website with an older Flash-based video player, FLV is the native format it expects. Converting your camcorder footage to FLV ensures compatibility.

Archival Systems

Some enterprise video management systems from the 2000s and early 2010s still use FLV. Converting allows you to add new camcorder footage to existing archives.

Reduced Bandwidth

FLV files stream more efficiently than raw AVCHD. If you need to share camcorder footage over limited bandwidth connections, FLV helps reduce buffering.

Better Alternatives for Modern Use

While FLV works for specific legacy needs, consider modern formats for new projects:

  • MTS to MP4 - The current web standard. Works everywhere including YouTube, social media, and HTML5 players
  • MTS to WEBM - Open format optimized for modern browsers with excellent compression
  • MTS to MOV - Best choice if you plan to edit in Final Cut Pro or other Apple software

Use FLV only when you have a specific requirement for Flash video compatibility.

Works on Any Device

Convert MTS to FLV directly in your browser:

  • Windows, Mac, Linux, Chromebook
  • Chrome, Firefox, Safari, Edge
  • Works with MTS files from Sony, Panasonic, Canon, and other AVCHD camcorders

No downloads, no software to install. Just upload, convert, and download.

Pro Tip

If you have MTS files from an AVCHD camcorder, copy the entire AVCHD folder structure to your computer before converting. Some camcorders split long recordings across multiple MTS files that need the folder metadata to play correctly.

Common Mistake

Converting to FLV for new web projects when MP4 with H.264 is now universally supported. FLV was essential when Flash dominated web video, but modern HTML5 players handle MP4 natively without plugins.

Best For

Maintaining legacy video archives, updating older Flash-based websites, or feeding into enterprise systems that were built around the FLV format during the 2005-2015 era.

Not Recommended

New video projects, social media uploads, or any modern web application. Use MP4 or WEBM instead. FLV conversion should only be used when you have a specific legacy requirement.

Frequently Asked Questions

MTS is a high-definition video format used by AVCHD camcorders from Sony, Panasonic, and Canon. It uses H.264 video compression with Dolby AC-3 audio. The format preserves excellent video quality but creates large file sizes.

FLV is useful for legacy systems that specifically require Flash video format. This includes older website video players, some enterprise video management systems, and archival workflows built around Flash. For modern use, MP4 is the better choice.

There is some quality reduction when converting MTS to FLV. FLV uses different codecs optimized for streaming rather than preservation. The quality remains good for web viewing but is not identical to the original AVCHD footage.

Yes. While FLV was designed for Flash, modern video players like VLC, PotPlayer, and many others can play FLV files natively without Flash Player installed.

Conversion time depends on file size and your device. A typical 10-minute AVCHD video usually converts within 2-5 minutes. Processing happens locally in your browser.

Adobe discontinued Flash Player in 2020, but the FLV container format remains usable. Many video players support FLV playback, and legacy systems still rely on it. However, for new projects, modern formats like MP4 are recommended.

Yes. You can upload multiple MTS files and convert them all to FLV in a single batch. This is helpful when processing footage from a video shoot or event.

The Dolby AC-3 audio from your MTS file is re-encoded to a format compatible with the FLV container, typically MP3 or AAC. Audio quality remains suitable for streaming and playback.

No. Our converter runs entirely in your web browser. There is no software to download or install. Your files are processed locally on your device.

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