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Supports: WTV
.wtv recording or click "+ Add Files" to select it. Multiple Recorded TV files can be queued and processed in one batch. Note: WTV files protected by Media Center's CGMS-A / broadcast-flag DRM cannot be transcoded — only unencrypted recordings will convert.WTV is the container Windows Media Center wrote to disk for recorded TV starting with the Vista TV Pack ("Fiji") in 2008 and as the default in Windows 7. The file wraps MPEG-2 or H.264 video alongside AC-3 or MPEG audio, plus broadcast metadata. Microsoft disbanded the Media Center team shortly after Windows 7's 2009 release and dropped the application entirely from Windows 10 and Windows 11 — so your old .wtv archive has outlived the player that created it. Extracting the audio track to Opus is the fastest way to keep what matters (the voice, the music, the interview) in a format every modern device understands.
| Property | WTV (Recorded TV) | Opus |
|---|---|---|
| Type | Video + audio container | Audio codec (in Ogg/WebM/Matroska) |
| Introduced | 2008 (Vista TV Pack "Fiji") | 2012 (RFC 6716) |
| Designed by | Microsoft (Windows Media Center) | IETF / Xiph.Org / Skype |
| Typical video codec | MPEG-2 or H.264 | n/a (audio only) |
| Typical audio codec | AC-3 (Dolby Digital) or MPEG-1 Layer II | Opus |
| Bitrate range (audio) | ~128–448 kbps (AC-3) | 6–510 kbps |
| Sample rates | 32 / 44.1 / 48 kHz | 8 / 12 / 16 / 24 / 48 kHz |
| Channels | Up to 5.1 (Dolby) | Up to 255 |
| Latency | n/a | 26.5 ms default, 5 ms minimum |
| Royalty status | Proprietary (Microsoft) + AC-3 patents | Royalty-free |
| Platform support | Windows Media Center only (deprecated; removed in Windows 10/11) | All major browsers, WhatsApp, Discord, YouTube, Zoom, Signal, PS4/5 |
| Typical use | DVR archive of broadcast TV | Voice over IP, podcasts, web streaming, game chat |
| Bitrate | Channel | Best for | Notes |
|---|---|---|---|
| 8–16 kbps | Mono | Ultra-low bandwidth voice | WhatsApp-style voice notes |
| 24–32 kbps | Mono | Talk radio, news, dialogue | Indistinguishable from 64 kbps MP3 for speech |
| 48–64 kbps | Stereo | Podcasts with music beds | Transparent for most spoken content |
| 96–128 kbps | Stereo | Music | Matches ~160 kbps MP3, near-transparent |
| 160–192 kbps | Stereo | Audiophile music | Fully transparent for nearly all listeners |
| 256–510 kbps | Stereo / multichannel | Mastering, archival | Diminishing returns beyond 192 kbps |
No. Microsoft's Media Center honored the broadcast flag and CGMS-A protection, so some cable, ATSC, or premium-channel recordings are encrypted on disk. Those files will fail to decode — there is no legal way around it. Recordings of unencrypted over-the-air ATSC broadcasts almost always convert without issue.
Opus is a strictly better lossy codec. The Xiph.Org and IETF listening tests show Opus reaches transparency at lower bitrates than MP3, AAC, or Vorbis — meaning your converted audio sounds cleaner at smaller file sizes. The only reason to choose WTV to MP3 instead is if you need playback on a 2005-era device that doesn't decode Opus (a first-gen iPod, an old car stereo, etc.). For phones, PCs, browsers, and smart speakers built since 2017, Opus is the right default.
Opus natively supports 8, 12, 16, 24, and 48 kHz. Picking any other rate just gets resampled to one of those internally. For most WTV recordings, the source audio is 48 kHz AC-3 — leave Sample Rate on Original to skip resampling. Drop to 16000 Hz only for narrow-band voice content (radio talk, dialog excerpts) where you want every kilobyte to count.
Yes. Open the Trim control in Advanced Options and set a start time and duration. This avoids waiting for a 2-hour file to convert when you only want a 5-minute interview. If you need precise multi-cut editing, run the trim first with Audio Cutter on a quick MP3 dump, then re-encode the trimmed clip back to Opus.
A 1-hour talk-radio recording (originally ~225 MB WTV with 192 kbps AC-3) typically lands around 14 MB at 32 kbps mono Opus and ~28 MB at 64 kbps stereo. Music drops less aggressively because higher bitrates carry real information — expect 25–45 MB per hour at 96 kbps stereo Opus, versus 75–85 MB per hour at 192 kbps MP3.
Yes, natively, since iOS 11 (2017) and macOS High Sierra (10.13, 2017). Older Apple devices need a third-party player like VLC. If you're sharing the audio with someone on a pre-2017 Apple device, convert to Opus to MP3 or pick AAC instead. For everyone else — Windows, Android, Linux, modern Apple — Opus just works.
Yes. WTV's AC-3 track is already a lossy MPEG-family encoding, and re-encoding to Opus creates a second generation of lossy compression. Audible artifacts are minimal because Opus is so efficient, but if you ever need pristine bit-perfect audio, the only option is to extract to WTV to WAV (uncompressed PCM) instead — at the cost of roughly 10x larger files.
Audio-only output drops the WTV-specific TV metadata (channel, network, broadcast time, episode synopsis) because no audio codec defines fields for those. Standard tags like title and artist can be added afterward with a tag editor (Mp3tag, Kid3) or via the rename step before download. If you need the original broadcast metadata preserved alongside the audio, convert to WTV to MP4 instead and keep the file as a video container.
Because both platforms use Opus internally already. WhatsApp has encoded voice notes as ogg/opus since 2016, and Discord has used Opus for every voice channel since launch. Sending Opus directly avoids a second re-encode step on their servers, which preserves quality. Sending AAC means the platform transcodes to Opus on the fly, costing you a generation of fidelity.