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Supports: VOB
VIDEO_TS folder (typically named VTS_01_1.VOB, VTS_01_2.VOB, etc.) are accepted up to 1 GiB each — the per-file cap the DVD-Video spec enforces. Batch upload is supported.VOB is the MPEG-2 container DVD-Video uses, stored in the VIDEO_TS directory and split into 1 GiB chunks for compatibility with older filesystems. HEIF (High Efficiency Image File Format) is the MPEG-developed still-image container that wraps HEVC-compressed frames — Apple adopted it as the default photo format in iOS 11 (September 2017) and macOS High Sierra. Pulling frames from a VOB straight into HEIF gives you Apple-native stills that are typically 40-50% smaller than the equivalent JPEG at the same visual quality. Common scenarios:
Need different output formats? See VOB to JPG for universal compatibility, VOB to PNG for lossless stills, or Video to HEIC for the same flow on MP4/MOV/MKV inputs. To convert HEIF back to a more portable format later, use HEIC to JPG.
| Property | VOB (source) | HEIF (output) |
|---|---|---|
| Media type | Video container (program stream) | Still image container |
| Codec | MPEG-2 (H.262) or MPEG-1; AC-3 / DTS / LPCM audio | HEVC (H.265) intra-coded frames |
| Standards body | DVD Forum (DVD-Video spec) | MPEG (ISO/IEC 23008-12) |
| Typical use | DVD-Video playback from VIDEO_TS folder |
iOS/macOS Photos library since 2017 |
| File extension | .vob |
.heif (or .heic for Apple's HEVC variant) |
| Per-file size cap | 1 GiB (DVD spec constraint) | None inherent to the format |
| Encryption | Often CSS-protected on retail DVDs | None — open container |
| Native support | DVD players, VLC, MPC-HC | iOS 11+, macOS High Sierra+, Windows 10 with HEIF extensions, Android 10+ |
| Color depth | Typically 8-bit 4:2:0 | Up to 10-bit, supports wide gamut |
| Best at | Sequential MPEG-2 video with DVD menus and subtitles | Compressing high-quality stills for Apple ecosystems |
HEIF wraps HEVC frames, and the preset controls HEVC's quantization parameter. Lower QP = bigger files, more retained detail.
| Preset | Approx. quality | Typical use | Size vs source frame |
|---|---|---|---|
| Highest | Near-lossless | Archival, print, color grading | Largest output |
| Very High (default) | Visually identical to source for most viewers | General use, Photos library | ~30-40% smaller than JPEG at same quality |
| High | Slight smoothing on fine textures | Web, sharing, AirDrop | ~50% smaller than JPEG |
| Medium | Visible softening on critical pixel-peep | Messaging, thumbnails | ~60% smaller than JPEG |
| Low / Lowest | Noticeable artefacts | Tiny previews, contact sheets | Smallest output |
HEIC is Apple's specific implementation of the HEIF standard — same container (ISO/IEC 23008-12), with HEVC-compressed image data. Files written by iPhones use the .heic extension; the broader spec uses .heif. On most viewers they are interchangeable, and any tool that opens HEIC will open HEIF.
Yes, with one install. Windows 10 (May 2018 Update / version 1803 and later) and Windows 11 open HEIF natively after you add the free HEIF Image Extensions from the Microsoft Store; for HEVC-encoded HEIF you also need the HEVC Video Extensions (a small paid add-on, or the free OEM-provided variant on some PCs). Photos, Paint, and File Explorer thumbnails then work like JPEG.
Yes — switch to Multiple Screenshots and pick a high cadence (every 1 second, or with framerate-based extraction up to 30 frames per second of source). For a 2-hour DVD that produces thousands of stills, so the resulting ZIP can be several GB; if you only need keyframes, choose every 5 or 10 seconds instead.
Probably not directly. Most retail DVD-Video discs use CSS (Content Scramble System) encryption on the VOBs sitting in VIDEO_TS. The converter accepts unencrypted VOB only; you'd need to decrypt the disc first using a tool like HandBrake (with libdvdcss installed) or MakeMKV, then upload the resulting clean VOB. Home-burned DVDs and unencrypted backups work without that step.
HEIF uses HEVC intra-frame compression, which is roughly twice as efficient as JPEG's older DCT-based scheme. Apple cites about 50% file-size savings at equivalent visual quality, and independent tests have measured JPEG averaging 80% larger than HEIF for the same iPhone photo. You're not losing detail — the algorithm is just newer.
A standard DVD is 720x480 (NTSC) or 720x576 (PAL) — sub-HD by modern standards. Extracting at native gets you every pixel the source actually contains; upscaling to 1080p or 4K via the resolution preset will look soft because there's no extra information to invent. Downscaling to 480p or 360p is fine for thumbnails and shrinks files further.
Yes. Switch to Specific Frame, then enter the timestamp in the Time (seconds) input — for 1 minute 30 seconds enter 90. The converter seeks to the nearest keyframe and decodes forward to the requested moment, so accuracy is within a few frames on long GOP MPEG-2.
The simplest path: download the HEIF files to a Mac and drop them into Photos.app (they import natively on macOS High Sierra and later). On Windows, upload to iCloud.com → Photos in a browser, or AirDrop from a Mac. Direct upload from a browser on iOS works too — long-press the download link and choose "Save to Files," then move into the Photos library.
No. The converter deinterlaces MPEG-2 source on the way in (DVD video is typically 480i60 or 576i50), so the still you get is a progressive frame. Menu graphics, subtitles, and chapter markers from the DVD are stripped — HEIF only carries the picture itself, not navigation data.