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Supports: DV
This walkthrough is for anyone shrinking bulky DV camcorder footage — old MiniDV captures, FireWire transfers, raw .dv clips — into a modern AV1 stream for archiving or web delivery. DV records at roughly 25 Mbit/s (about 11–13 GB per hour), so re-encoding to AV1 typically cuts the file size by an order of magnitude. We also cover the two things people trip over: raw .av1 output carries no audio, and DV is interlaced standard definition.
.dv files onto the page or click "+ Add Files". You can queue several clips and convert them with the same settings.AV1 is a slow, CPU-heavy encode, so the compression mode you pick is the biggest lever on both output size and how long the job takes. Match the mode to your goal:
Because the source is only standard definition, there is little benefit to upscaling; keep the resolution at the original to avoid inflating the file and the encode time for no real gain.
.av1 file is a bare video-only elementary stream (an OBU bitstream) — it cannot carry an audio track at all. To keep your DV's audio, convert to an AV1-in-container format instead, such as DV to WebM (AV1/VP9 + Opus) or, for the broadest playback, DV to MP4.If your .dv capture is corrupted, dropout-damaged from an aging tape, or wrapped in a container the uploader doesn't recognize, the encode may fail or produce glitches mid-clip. In those cases, first remux or repair the capture in a desktop tool, or convert to a more forgiving intermediate like DV to MP4 and work from there. If you only need the audio from a tape, extract it separately rather than encoding the whole stream to a video-only .av1.
DV is intraframe-only and records at about 25 Mbit/s — roughly 11–13 GB per hour — which is enormous for standard-definition video. AV1 is a modern, royalty-free codec from the Alliance for Open Media that delivers roughly 30–50% better compression than HEVC, so converting old camcorder footage to AV1 can shrink an archive dramatically while keeping perceived detail.
Not if you output a raw .av1 file — that format is a video-only OBU elementary stream with no audio track. To preserve the DV audio, convert to an AV1- or VP9-in-container format such as WebM (which pairs AV1/VP9 video with Opus audio) or to MP4. On this tool the AV1 output defaults to an Opus audio track only when written into a container that supports it.
Some loss is unavoidable because it is a re-encode, not a copy — DV is already a lossy codec, and AV1 re-compresses it. In our testing, a low-to-mid 20s CRF on standard-definition DV keeps the result visually close to the source while cutting the file to a fraction of the original size. Use Constant Quality with a low CRF if preserving detail matters more than file size.
AV1 decoding is supported in Chrome 70+, Firefox 67+, and Edge 121+, and in Safari 17+ on devices with AV1 hardware support. Standalone players like VLC and mpv also play it. Older phones, smart TVs, and laptops without AV1 hardware may not play it smoothly — convert to MP4 (H.264) for maximum compatibility.
AV1 is computationally expensive to encode — much slower than H.264 or HEVC at comparable settings. A full SD tape transfer is a large input, so a single clip can take several minutes. The tradeoff is a far smaller, more future-proof file.
DV from MiniDV camcorders is interlaced (720×480 NTSC or 720×576 PAL). On modern progressive displays that shows as combing on movement. Deinterlacing during conversion produces a clean progressive AV1 file; if you skip it, enable your media player's deinterlace filter at playback time instead.
Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours. There is no sign-up, no watermark, and files are never shared or made public.