OPUS to CDDA Converter

Prepare OPUS audio as raw CD Digital Audio format

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CD-Ready Audio

CDDA meets Red Book specifications — convert OPUS tracks into disc-ready audio for CD burning.

Universal Disc Format

Every CD player worldwide reads Red Book audio — produce CDDA from OPUS for maximum physical media compatibility.

Online Processing

No CD authoring tools needed for the conversion — produce CDDA from OPUS directly in your browser.

How to convert OPUS to CDDA

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose cdda or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your cdda file right afterwards

About formats

Opus is a versatile, open audio codec standardized by the IETF as RFC 6716 in 2012. It fuses two coding approaches — SILK for speech and CELT for music — into one algorithm that blends between them based on content type and bitrate. This hybrid design lets Opus outperform virtually every other codec across a wide range of uses: low-latency voice at 6 kbps, high-fidelity music at 128 kbps, and everything in between. It supports bitrates from 6 to 510 kbps, sample rates up to 48 kHz, and frame sizes as small as 2.5 ms, giving it the lowest algorithmic latency of any mainstream audio codec. Three advantages make Opus especially compelling. It is completely royalty-free and open-source, removing licensing barriers that hold back proprietary codecs. It achieves transparent quality at roughly half the bitrate of MP3 and beats AAC at equivalent rates. And its low latency makes it the mandatory codec for WebRTC, so every modern browser ships with an Opus decoder. WhatsApp, Discord, Zoom, and YouTube all rely on Opus for real-time audio.
Initial release: September 11, 2012
CDDA (Compact Disc Digital Audio), known as the Red Book standard, defines audio stored on music CDs. Jointly developed by Sony and Philips and published in 1980, it established parameters that shaped digital audio for decades: 16-bit linear PCM at 44.1 kHz stereo, yielding 1,411.2 kbps uncompressed. Each disc holds up to 80 minutes organized into tracks with index points, sub-channel data for text display, and error correction codes (CIRC) ensuring reliable playback despite minor scratches. When audio is ripped from a CD, the resulting stream is often saved with the .cdda extension as raw PCM before conversion. The most obvious advantage is uncompressed, lossless nature — what reaches your ears is mathematically identical to the studio master at the specified resolution. Robust error correction provides excellent resilience, maintaining audio integrity even when disc surfaces suffer moderate wear. Having sold billions of units since the first commercial release in 1982, CDDA established baseline quality expectations for digital music and remains the reference against which compressed codecs are measured.
Developer: Sony / Philips
Initial release: October 1980

Frequently Asked Questions

Why convert OPUS to CDDA?

CDDA is the raw audio format for burning audio CDs — 44.1 kHz, 16-bit stereo PCM per the Red Book specification.

What uses CDDA?

CD authoring software, disc burning applications, and audio mastering tools use CDDA as input for Red Book audio CDs.

Is CDDA uncompressed?

Yes — CDDA stores raw PCM at CD specs. Files are significantly larger than the compressed OPUS source.

Will burning improve quality?

CDDA decodes OPUS to CD specifications but cannot improve quality beyond what the OPUS file contains.

Can I prepare an album?

Upload all your OPUS tracks and convert them to CDDA in one batch — prepare a full CD for burning.

OPUS to CDDA Quality Rating

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