WTV to OGA Converter

How to Convert WTV to OGA Online

1. Upload Your WTV File: Drag and drop your .wtv recording or click "+ Add Files". Batch upload is supported, so a season of recorded TV can queue at once. 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.
2. Pick Audio Codec and Quality Preset: OGA is a container; choose what goes inside it. Vorbis is the default and the most broadly compatible (Android, Firefox, VLC, most game engines). Pick FLAC for lossless archival of music programming, or Opus for the smallest files at speech-friendly bitrates. Then set the Quality Preset (Lowest, Low, Medium, High, Very High, Highest) — Medium maps to a Vorbis quality level near -q 5 which is roughly 160 kbps VBR.
3. Tune Bitrate, Sample Rate, Channels, or Trim (Optional): Switch to Constant Bitrate, Variable Bitrate, or Custom Bitrate when you need a specific kbps target; set a Specific file size if you're emailing the file; pick a Sample Rate (8000-48000 Hz, default keeps the source); flip Audio Channel to Mono to halve the size of talk-radio recordings. Use Trim to drop the pre-roll commercials Windows Media Center captured before the show actually started.
4. Convert and Download: Click Convert. The job runs in your session, and the finished .oga downloads when ready — no watermark, no sign-up, no email confirmation.

Why Convert WTV to OGA?

WTV (Windows Recorded TV Show) is the Microsoft container that Windows Media Center wrote to disk for every recorded broadcast starting with the TV Pack 2008 update for Windows Vista, then natively in Windows 7's Media Center editions. WTV typically wraps MPEG-2 or H.264 video with MPEG-1 Layer II or Dolby Digital AC-3 audio. Microsoft announced in May 2015 that Media Center would not ship with Windows 10, and it is absent from Windows 11 as well — so the WTV files sitting on old Media Center PCs need to move into a format current software actually opens. Stripping out the audio into an Ogg container (.oga) is the right move whenever you only need the soundtrack.

• Archive talk radio and news recordings cheaply — A two-hour AC-3 audio track inside a WTV is roughly 170 MB; the same content re-encoded to Vorbis at quality 3 (~110 kbps) lands near 95 MB, and Opus at 64 kbps takes about 55 MB without losing speech intelligibility.
• Pull music broadcasts into a library that supports lossless — FLAC inside OGA preserves the original MPEG-1 Layer II or AC-3 bit depth after the single decode pass, which is what music archivists ask for when the source can't be re-acquired.
• Send recordings through royalty-free pipelines — Vorbis and Opus are unencumbered by patent licensing (Vorbis since 2002, Opus standardized as RFC 6716 in 2012), which matters for podcasters, indie game devs, and anyone redistributing audio at scale.
• Play on devices that refuse WTV — VLC opens WTV but most consumer devices do not; Vorbis and Opus inside .oga play on Android (native since 2.3), Firefox, Chrome, Edge, and any player built on FFmpeg or GStreamer.
• Feed audio to transcription tools — Whisper, Otter, and Descript all accept Ogg input directly. Extracting to mono Vorbis at 24 kHz keeps file sizes small for upload without hurting speech-to-text accuracy.

WTV vs OGA — Container Comparison

Ogg Codec Quick Guide — Pick the Right One for OGA

Tip: If you don't know which codec to pick, Vorbis at Medium quality is the closest one-to-one swap for the AC-3 track inside most WTV files and works in essentially every player that opens .oga.

Frequently Asked Questions

Why pick OGA over MP3 when extracting audio from a WTV?

OGA at the same bitrate generally sounds better than MP3, and it is patent-unencumbered, which matters for redistribution. Vorbis at 128 kbps is widely considered transparent for most music content, and Opus at 64 kbps approaches that quality for voice. If your only target is iTunes or an iPod, MP3 is still safer — try WTV to MP3 instead.

My WTV's audio is Dolby Digital AC-3 5.1 — does the surround mix survive?

The Ogg container can carry multichannel audio in Vorbis, Opus, and FLAC, but most downstream players expect stereo. By default the converter downmixes to stereo, which is usually what you want for music players, browsers, and phones. If you need the original channel count, leave Audio Channel set to ORIGINAL and verify your target player handles 5.1 OGA — VLC does; Firefox and Safari typically render only the front pair.

Why is .oga instead of .ogg?

Xiph.Org recommended in 2007 that .ogg be reserved for Ogg Vorbis specifically, with .oga used for any other audio-only Ogg payload (FLAC, Opus, Speex, OggPCM). RFC 5334 (September 2008) formalized this. In practice many tools still accept either extension, but .oga is the spec-correct choice when the codec is anything other than Vorbis.

Why are commercials at the start of my recording? Can I cut them?

Windows Media Center began recording a few seconds before the scheduled start time as a safety margin, so leading and trailing commercials are common. Use the Trim controls in Advanced Options to set a start offset and duration in HH:MM:SS.mmm — that excises the padding before encoding so the output .oga lands at the right length and size. For more surgical edits, run the result through the Audio Cutter.

What's the file size limit and how long does conversion take?

Uploads run on our servers, and a typical 30-minute WTV recording (around 1-2 GB) converts to a Vorbis-quality-5 OGA in roughly the time it takes to upload, since audio extraction is far less CPU-intensive than full transcode. Very large multi-hour recordings should be trimmed first to keep upload time reasonable.

Should I pick Constant Bitrate (CBR) or Variable Bitrate (VBR)?

VBR is almost always the right choice for a final listening copy — it spends more bits on complex passages and fewer on silence, producing smaller files at the same perceived quality. CBR is only worth picking when a downstream tool requires it (some old streaming servers, certain hardware decoders) or when you need a predictable per-minute file size for upload caps.

Will the OGA file play in iTunes, Apple Music, or on iPhone?

Apple's ecosystem does not natively decode Ogg streams. iOS and macOS will not play .oga in the stock Music app. For Apple devices, convert to AAC or ALAC instead — try WTV to AAC or, for lossless, WTV to FLAC (FLAC plays in Apple Music as of iOS 11 in 2017).

Does this work for DRM-protected WTV recordings?

No. Some over-the-air recordings from Windows Media Center carry a CGMS-A "copy once" or "copy never" flag enforced by Microsoft's PlayReady DRM, which prevents re-encoding. Unprotected free-to-air recordings convert without issue. If the conversion fails with a DRM error, you'll need to decrypt the file inside an authorized Media Center environment before uploading — that's a Microsoft licensing constraint, not a converter limitation.

Can I batch-convert an entire season of recordings?

Yes. Drop multiple .wtv files into the uploader and they convert with the same codec, bitrate, sample rate, and trim settings. If you want different settings per file, run them as separate batches. To shrink the resulting library further, follow up with Compress OGA.