Convert M2TS to FLAC — Free Online Converter
Convert MPEG-2 Transport Stream (.m2ts) to Free Lossless Audio Codec (.flac) online for free. Fast, secure video conversion with no watermarks or regi...
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Upload your .m2ts file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .flac file when it's ready.
About M2TS to FLAC Conversion
M2TS containers from Blu-ray discs hold some of the highest-quality consumer audio available — DTS-HD Master Audio at lossless rates, Dolby TrueHD at lossless quality, LPCM at 24-bit/96 kHz, or standard AC3 at 640 kbps. FLAC (Free Lossless Audio Codec) is the universal open-source standard for lossless audio archiving. Converting M2TS to FLAC extracts and preserves this high-fidelity audio in a format that is supported on every platform.
Why Convert M2TS to FLAC?
Blu-ray M2TS files contain some of the best audio available in consumer media. Extracting to FLAC preserves this quality losslessly while reducing storage compared to raw PCM. FLAC is supported on Linux, Windows (natively since Windows 10), Android, macOS (via most players), and by every major media server. It is the gold standard for audio archiving and the format of choice for audiophile communities worldwide.
Common Use Cases
- Archiving film scores from Blu-ray collections as high-quality lossless FLAC audio
- Extracting DTS-HD Master Audio tracks from Blu-ray for audiophile music listening
- Building a lossless soundtrack library from Blu-ray movie collections
- Preserving concert recordings from Blu-ray live performance discs in the highest quality
- Creating reference audio files from Blu-ray for home theater calibration
How It Works
FFmpeg reads the M2TS transport stream and decodes the audio track (AC3, DTS, DTS-HD MA, TrueHD, or LPCM) to PCM. The PCM data is then compressed using the FLAC encoder with configurable compression level (0-8). For LPCM and lossless codec sources (DTS-HD MA, TrueHD), the FLAC output is a perfect preservation of the original master audio. For lossy sources (AC3, core DTS), FLAC captures the fully decoded audio losslessly. Multi-channel layouts (5.1, 7.1) are supported natively by FLAC.
Quality & Performance
FLAC is lossless — the decoded audio is bit-identical to the PCM input. From lossless M2TS tracks (LPCM, DTS-HD MA, TrueHD), you get a perfect copy of the studio master. From lossy AC3/DTS, you get a perfect copy of the decoded lossy audio. No quality is ever lost in FLAC encoding or decoding, regardless of how many times the file is processed.
Device Compatibility
| Device | M2TS | FLAC |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No | No |
Recommended Settings by Platform
YouTube
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
TikTok
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Twitter/X
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Discord
Resolution: 1280x720
Bitrate: 4 Mbps
8MB free, 50MB Nitro
Tips for Best Results
- 1Always extract from the highest-quality audio track available — DTS-HD MA and TrueHD are lossless and produce the best FLAC output.
- 2Use FLAC compression level 5 (default) — higher levels save only 1-3% more space with significantly longer encoding times.
- 3Preserve multi-channel layouts (5.1/7.1) if you have a surround sound system — FLAC handles all channel configurations.
- 4Add metadata tags (movie title, composer, year) to the FLAC files for proper library organization in music players.
- 5Use ReplayGain tags to normalize volume across FLAC files from different Blu-ray sources without modifying the audio data.
Related Conversions
M2TS to FLAC is the definitive conversion for preserving the exceptional audio quality of Blu-ray discs. It combines perfect lossless preservation with universal platform support and reasonable file sizes.