WTV to AVI Converter

How to Convert WTV to AVI Online

1. Upload Your WTV File: Drag and drop or click "Add Files" to select .wtv recordings from Windows Media Center — over-the-air ATSC captures, basic-cable QAM grabs via a Hauppauge or Ceton tuner, or archived Recorded TV library files copied from an old Windows 7 / Vista box. Batch is supported — drop in a whole season's worth of recordings at once. No 1 GB cap like FreeConvert, no Google Drive / Dropbox round-trip.
2. Pick a Video Codec: Default is DivX — the codec AVI was designed around in the early 2000s and the one most standalone DVD players, smart TVs, and car head units list on their AVI compatibility sheet. Switch to Xvid for the open-source equivalent, MPEG-4 ASP for the broadest legacy hardware reach, MPEG-2 to keep the source codec from the WTV stream and minimize re-encoding loss, or H.264 for a smaller file inside the AVI wrapper. Set Quality Preset (Highest → Lowest, default Very High), target a percentage of the source file size, lock to a specific MB target, or fine-tune with Constant Bitrate, Variable Bitrate, Constant Quality, or Constraint Quality. Audio defaults to MP3 — switch to AC-3 (Dolby Digital) to keep the original 5.1 broadcast surround track, MP2 for DVD-style audio, or PCM for lossless.
3. Resize or Trim (Optional): Pick a Preset Resolution (1080p / 720p / 576p PAL / 480p NTSC / 360p), enter a custom Width × Height, or scale by Resolution Percentage. Use Trim with start time + duration in HH:MM:SS.sss format to drop the pre-roll padding Media Center wrote before a scheduled program, mid-show ad breaks, or dead air at the tail end of an overnight recording.
4. Convert and Download: Click Convert. Files process in your browser session — no sign-up, no watermark, no upload to a third-party server.

Why Convert WTV to AVI?

WTV (Windows Recorded TV Show) is the proprietary container Windows Media Center wrote to disk for live and scheduled TV recordings starting with Windows 7. Inside the .wtv file the video is normally MPEG-2 (occasionally H.264 from a few hardware tuners) with AC-3 or MP2 audio. Microsoft discontinued Media Center after Windows 7 — it's not available on Windows 8, 10, or 11, and the WTV container is recognized by almost nothing outside of Media Center itself. AVI (Audio Video Interleave) is Microsoft's 1992 container — older, simpler, and supported by virtually every legacy Windows tool, hardware DVD player, and offline media appliance ever shipped.

• Rescuing recordings from a retired Windows 7 Media Center box — Media Center stored shows in C:\Users\Public\Recorded TV\. Once you copy that folder off the dying machine, WTV files won't open on a current Windows 11 or macOS install. Re-encoding to AVI with DivX or Xvid produces a file Windows Media Player, VLC, MPC-HC, and PotPlayer all open natively — no codec pack, no Media Center reinstall.
• Editing in legacy Windows NLEs — Sony Vegas 13, Pinnacle Studio 14, Adobe Premiere CS5, Windows Movie Maker, and VirtualDub all import AVI cleanly but reject .wtv outright. AVI is the path of least resistance for older editing software stuck on a 2010-era release. A two-hour HD WTV recording runs 8-14 GB; trimming and re-encoding to AVI inside the editor pipeline is far smoother than wrestling with the source container.
• Standalone DVD-player and set-top-box playback — Plenty of 2005-2015 DVD players, Sony / LG / Philips home-theater units, and car head units accept AVI on a USB stick but do not list .wtv as a supported format at all. DivX-in-AVI is the standard recipe for getting a recorded show onto that hardware.
• Archiving the family Media Center library — A typical hour-long HD recording is 4-7 GB of WTV. AVI with DivX/Xvid at Quality Preset Very High produces a self-contained file roughly 40-50% the size that drops onto a NAS, USB drive, or Plex library without WTV's proprietary metadata. For a modern, smaller, universally-played target instead, see WTV to MP4.
• Burning recorded TV back to disc — DVD authoring tools like DVDStyler and ImgBurn expect MPEG-2 program stream input — not WTV and not most AVI variants. For DVD authoring, WTV to MPEG is the better landing page; AVI with MPEG-2 at 480p / 576p works as an intermediate when your authoring tool accepts AVI input.
• Playback on legacy hardware — WD TV Live, Roku 1, classic Xbox, and most 2000s networked media players recognize AVI off USB but treat .wtv as unknown. AVI plays from a thumb drive on hardware too old to update.

WTV vs AVI — Format Comparison

Video Codec Choice Inside the AVI

Frequently Asked Questions

Is converting WTV to AVI lossless?

It depends on the codec you pick. WTV usually stores MPEG-2 video internally, so picking MPEG-2 as the AVI video codec is effectively a container re-wrap with minimal quality loss — the elementary stream comes out of the WTV wrapper and goes into the AVI wrapper without re-encoding. Picking DivX, Xvid, MPEG-4, or H.264 is a real re-encode with a small quality cost. At Quality Preset Very High (the default) the difference is invisible at typical viewing distances; if you want true lossless, choose MPEG-2 and accept that the AVI will be 2-3× larger than a DivX/Xvid version.

Can I convert DRM-protected "Copy Once" WTV files?

No — and no online or offline converter legally can. Premium cable channels and some satellite recordings get flagged "Copy Once" or "Copy Never" by the broadcast flag and are encrypted with PlayReady DRM tied to the original Media Center machine. Those .wtv files only play on the PC that recorded them. Free-to-air ATSC over-the-air recordings, basic-cable QAM captures, and most school / public broadcasts are unencrypted and convert normally.

Why won't Windows 11 or macOS open my .wtv files?

Microsoft discontinued Windows Media Center after Windows 7 — it isn't available on Windows 8, 10, or 11, and Media Center was the only Windows component that shipped a WTV demuxer. macOS never had native WTV support at all. VLC reads some unencrypted WTV files but stutters on the AC-3 surround track and on the DVR stream-stitching artifacts. Re-encoding to AVI produces a file every modern player handles natively without needing a Media Center reinstall.

Should I pick DivX, Xvid, or MPEG-4 as the AVI codec?

DivX is the safe default — it's the codec standalone DVD players, smart TVs, and car head units from 2005-2015 were certified against. Xvid is the open-source twin: identical compression, slightly less hardware certification, no licensing implications. MPEG-4 ASP is the safest legacy choice — every AVI player ever made accepts it, at a modest size cost vs DivX/Xvid. Pick MPEG-2 only if you want a near-lossless wrap of the source.

Will the AC-3 surround track from my broadcast recording survive?

Yes — pick AC-3 (Dolby Digital) as the audio codec output to keep the original 5.1 track bit-for-bit. Default is MP3 (smaller, universally supported), which downmixes 5.1 to stereo. For HTPC or home-theater playback off the AVI, AC-3 preserves the surround mix; for laptop or USB-stick playback in a car, MP3 stereo is usually what you want.

How big a WTV file can I convert?

Multi-hour HD recordings (8-14 GB WTV files) work — there's no fixed cap because conversion runs in your browser session, so the practical limit is your device's RAM and patience for the upload. This is the differentiator vs FreeConvert's 1 GB ceiling and Convertio's 100 MB free-tier limit. For a 6-hour overnight movie marathon recording, trim first to extract just the program you want.

Can I trim out the pre-roll padding and ad breaks while converting?

Yes. Media Center deliberately starts recording 1-5 minutes before the scheduled program and runs 1-3 minutes past the end — so a 60-minute show is usually a 65-70 minute recording. The Trim option takes a start time and a duration, both accepting seconds (90.5) or HH:MM:SS.sss format (00:01:30.500). Set start to skip the pre-roll, duration to cover just the program, and ad breaks can be removed by running the conversion multiple times with different trim ranges.

What's the difference between WTV and DVR-MS?

DVR-MS came first, on Windows XP Media Center Edition (2004) and Vista. WTV replaced it in Windows 7 (2008) — same purpose (TV recording for Media Center), different container, both proprietary to Microsoft, both abandoned when Media Center was killed in Windows 8. If your recordings are .dvr-ms rather than .wtv, use DVR to AVI instead.

What's the difference between converting to AVI vs MP4?

AVI is the legacy / hardware-compatibility target — DVD players, older Windows tools, 2010-era HTPCs, classic car head units. MP4 is the modern target — phones, browsers, smart TVs from 2018+, Plex, Jellyfin, every cloud service. Pick AVI when the destination device or software is older than ~2015 and specifically lists AVI as supported. For everything else, WTV to MP4 is the better landing page; for lossless remuxing into a modern container that keeps every audio track, WTV to MKV is the right choice.