DVR to OGG Converter

How to Convert DVR to OGG Online

1. Upload Your DVR File: Drag and drop or click "+ Add Files" to load .dvr / .dvr-ms recordings from your Windows Media Center library or external drive. Batch upload is supported — queue an entire season of recordings in one pass. Files process on our servers and never touch our database.
2. Pick a Compression Method: Default is Quality Preset → Highest. Switch to File Size Percentage to shrink relative to the source audio track, Specific file size to target an exact MB/KB value, Custom Bitrate to type any kbps figure, Constant Bitrate for fixed-rate presets (32–510 kbps), or Variable Bitrate for Vorbis's native VBR ranges (best quality-per-byte).
3. Tune Audio Settings (Optional): Audio codec stays on Vorbis (the OGG default). Set Audio Channel to Original, Mono (cuts size ~50% for voice), or Stereo. Change Audio Sample Rate from 8000 Hz up to 48000 Hz — Original copies the DVR's source rate, typically 48 kHz for ATSC broadcasts or 44.1 kHz for cable-tuner captures.
4. Trim and Convert: Under Trim, switch off "Unchanged" and enter a Start Time and Duration in seconds or HH:MM:SS.sss to skip past TV-leader padding or commercial breaks. Click Convert and download — no sign-up, no watermark, no email gating.

Why Convert DVR to OGG?

DVR-MS (Microsoft Digital Video Recording) is the container Windows XP Media Center Edition, Vista, and Windows 7 wrote when their built-in Stream Buffer Engine captured live TV. The format was introduced in 2004 and was officially superseded by WTV starting with the Windows Media Center TV Pack 2008, but huge archives of .dvr-ms recordings still sit on home servers and external drives. Audio inside is normally MPEG-1 Audio Layer II (MP2) for standard-definition broadcasts and Dolby Digital AC-3 for HDTV captures. Converting to OGG (Vorbis) strips out the video and rewraps the soundtrack into an open, royalty-free container that plays in browsers, on Android, and inside every modern game engine.

• Salvage interview and dialogue audio — a 60-minute SD news recording at MP2 384 kbps is a ~170 MB DVR-MS file; re-encoding the audio track to Vorbis at ~96 kbps VBR lands around 40 MB while keeping every word intelligible.
• Build podcast or YouTube source material — extract a panel discussion, late-night monologue, or sports commentary from your DVR archive without the video weight, then edit in Audacity (native OGG support since 2002) or Reaper.
• Game and web audio assets — OGG is the default streaming-audio format for Unity, Unreal Engine, Godot, and most HTML5 games because Vorbis is patent-unencumbered. Pulling clean dialogue or ambient TV beds out of .dvr-ms skips the MP3 licensing question entirely.
• Archive in an open format — DVR-MS is a Microsoft proprietary container with DRM hooks; if a recorded broadcast was flagged copy-protected, playback is locked to the recording machine. Vorbis in an OGG container is royalty-free and reads on Linux, BSD, Android, and any browser shipping a modern audio decoder.
• Shrink for cloud sync — a 90-minute HDTV .dvr-ms (AC-3 audio path) at 640 kbps audio bitrate audio drops from roughly 430 MB total file size to under 90 MB once you keep audio only at Vorbis q5 (160 kbps avg).
• Cross-platform sharing — sending a friend the audio of a TV segment as OGG works in Firefox, Chrome, Edge 17+, Android, and Safari 18.4+ (per caniuse data); below that, point recipients at DVR to MP3 for universal playback.

Have a WTV-format recording instead (the post-2008 Media Center container)? Use WTV to OGG. Need lossless audio for further editing? DVR to WAV or DVR to FLAC preserves every bit. To trim before encoding, Audio Cutter handles the cut in isolation.

DVR-MS vs OGG — Container Comparison

OGG Vorbis Bitrate & Quality Cheat Sheet

Numbers below assume stereo at the source sample rate (44.1 or 48 kHz). "Size per hour" is the resulting audio for one hour at that average bitrate. Vorbis VBR is the native mode — Xiph documents the quality levels (q-1 through q10) rather than fixed kbps targets, so the values shown are typical averages.

If you want a fixed-rate file (predictable streaming size), switch to Constant Bitrate and pick a preset between 32 and 510 kbps. For voice-only TV captures, 64–96 kbps mono is enough; for music broadcasts and concert recordings, 160–192 kbps stereo is the practical sweet spot.

Frequently Asked Questions

My DVR file is .dvr-ms — will it upload?

Yes. The tool accepts .dvr and .dvr-ms extensions. Both refer to the same Microsoft container produced by Windows Media Center — the -ms suffix was the original full name; many backups, plug-ins, and third-party renamers shorten it to .dvr. If your file uses a different extension altogether (e.g., .wtv), use WTV to OGG instead.

Why does my DVR-MS file refuse to convert?

Most likely the recording was marked copy-protected at the broadcast source (Microsoft's documentation notes that copy-protected DVR-MS files can only play back on the machine that recorded them, and the audio track inherits that restriction). If your file isn't DRM-locked but still fails, it may use AC-3 audio from an HDTV capture; that path is fully supported here — retry the upload, or first try DVR to MP4 to confirm the container itself is readable.

Will the audio be MP2 or AC-3 inside the source?

Per Microsoft's container design, standard-definition recordings normally carry MPEG-1 Audio Layer II (MP2), while high-definition ATSC captures carry Dolby Digital AC-3. The converter decodes both and re-encodes to Vorbis — you don't need to know which is inside before uploading. If you want to preserve the original codec instead of transcoding, extract to MKV first and check the audio track with ffprobe.

Will my output OGG play on iPhone or in Safari?

Caniuse's data shows full OGG Vorbis support landed in Safari 18.4 (and iOS Safari 18.4), with partial support from Safari 14.1 and iOS Safari 17.4. On older Apple devices OGG won't play natively — choose DVR to MP3 for guaranteed playback across every iPhone, iPad, and Apple TV currently in use.

Should I pick Vorbis VBR or Constant Bitrate?

For archiving or general listening, pick Variable Bitrate — Vorbis was designed VBR-first, and the Xiph reference encoder produces noticeably better quality per byte in VBR than in CBR at the same average. Pick Constant Bitrate only when a downstream tool (a legacy game engine, a streaming pipeline, an embedded device) requires a fixed rate or fails to seek properly in a VBR stream.

Can I extract only a 30-second clip instead of the whole show?

Yes. In the Trim section, switch off "Unchanged" and enter a Start Time (e.g., 00:14:30.000) and Duration (e.g., 30 seconds, or 00:00:30.000). The encoder seeks the DVR-MS source, decodes just the requested window, and writes a Vorbis stream of exactly that length. Useful for grabbing a single quote, intro music, or laugh-track sample without processing an entire 1-hour recording.

Why is OGG smaller than the MP3 I'd get at the "same" bitrate?

Vorbis's psychoacoustic model and channel-coupling are more aggressive than MP3's, so a 128 kbps Vorbis file is typically perceived as roughly equivalent to a 160–192 kbps MP3 in blind listening tests. That's the practical reason game engines and Wikipedia standardized on Vorbis (and now Opus) — you get the same intelligibility at lower file sizes, with no patent license attached.

How long does a 1-hour DVR-MS conversion take?

Audio-only decoding plus Vorbis VBR encoding is CPU-bound and runs at multiples of real-time on a modern laptop — usually 30 seconds to 2 minutes for a 60-minute recording, dominated by demuxing the source DVR-MS container and the upload time of the original file. There's runs on xconvert’s servers with no per-file cap, no daily limit, and no separate "Pro" tier waiting for you mid-conversion.

Is anything uploaded to your servers permanently?

files are processed on our servers and deleted automatically after a few hours and removed when the session ends. No account is required, there's no watermark on the OGG output, and there's no file-count cap on a typical session. If your DVR archive contains personal recordings, that locality matters more than the conversion speed.