Step 1: Transfer your VOB files using the button above or by slide and deposit.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Retrieve your converted JPG files.
VOB to JPG Conversion FAQ
How do I extract frames from a VOB video as JPG images?
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Upload the VOB and the converter exposes a frame-extraction picker: every Nth frame, frames at specific timestamps, or one frame per second. Each chosen frame is encoded as an individual JPG file and the full set is bundled into a ZIP archive for download. VOB is the Video Object container found in the VIDEO_TS folder of every DVD — an MPEG-2 program stream with DVD-specific navigation data added. JPG is the JPEG standard from 1992, served under the .jpg, .jpeg and .jfif extensions alike, and after three decades it is still the format most cameras and most websites use for photographs.
Why do my extracted frames have horizontal lines through them?
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Because the source is interlaced. VOB content from the broadcast and DVD era stores two half-height fields per frame, captured a fiftieth of a second apart, and a still pulled straight out shows both woven together as combing on anything that moved. Enable deinterlacing before extraction and each still is built from a single reconstructed progressive frame.
Will subtitles show up in the JPG frames I extract?
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Not if they are a real subtitle track. A VOB keeps subtitles as their own stream and the player draws them over the picture at playback time, so the decoded frame the converter writes out as a JPG has clean pixels underneath. Subtitles that were burned into the video before it ever became a VOB are a different matter — by then they are part of the image and every extracted frame keeps them.
Can I pull one JPG out of each chapter of the VOB?
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Not as a single button, but the VOB makes it straightforward: chapter marks are stored in the container as named timestamps, so read the chapter list off the file and paste those times into the timestamp field. You get one JPG per chapter, in order, which is the usual way of building thumbnails for a long recording. Sources with no chapter marks leave you picking scenes by eye instead. VOB preserves the whole DVD payload — multiple angles, multiple audio languages and subtitle tracks all survive inside it.
What quality setting should I use for the JPG output?
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Quality 85 is the sensible default and the one used unless you change it — visually indistinguishable from the source at normal viewing distance, at roughly a fifth of the size of a lossless equivalent. Push to 95 for anything that will be edited or printed, and drop to 70 for thumbnails where size dominates. JPG is lossy: the image is transformed with a DCT, quantised, and entropy-coded, with a quality knob controlling how much is discarded.
At what resolution does each extracted JPG frame come out?
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The same resolution as the VOB video — a 1080p VOB produces 1920×1080 JPG frames; a 4K VOB produces 3840×2160 JPG frames. Use the resize utility after extraction if you want smaller thumbnails or social-media-sized crops.
Can I extract every single frame from VOB as JPG?
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Yes, but be careful with file count — a 30fps 1-minute VOB produces 1,800 JPG frames. We pack them into a ZIP automatically. For longer clips, the "1 per second" option (60 frames) or specific timestamps gives a manageable result.
Will the extracted JPG images preserve the VOB color grading?
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Yes — colour is decoded with the matrix the source VOB uses (BT.709 for HD, BT.2020 for 4K HDR). HDR sources are tone-mapped to SDR on extraction to JPG because most JPG formats (PNG, JPG) cannot store HDR pixel ranges natively.
What is the file size of one extracted JPG frame?
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Depends on resolution and JPG codec. A 1080p PNG frame is typically 2 to 5 MB; a 1080p JPG at quality-85 is 200 to 500 KB; a 4K PNG is 6 to 15 MB. At the extreme, every-frame PNG extraction of a 10-minute 1080p VOB produces ~50 GB total.
Does the extracted JPG retain EXIF camera metadata?
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The VOB container does not store per-frame EXIF the way a still camera does, so the JPG files come out with empty EXIF. We embed a `creation_time` field pointing at the source frame timestamp so you can re-sort the bundle by capture order.
How long does frame extraction from VOB to JPG take?
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Frame extraction is fast — typically 20 to 30% of source duration on the standard pipeline. A 5-minute VOB → JPG bundle finishes in about a minute regardless of frame count, because the bottleneck is the JPG encoder, not the VOB demuxer.
Can I extract frames at specific timestamps in the VOB?
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Yes — the advanced option accepts a comma-separated list of timestamps (e.g. `00:01:23,00:05:00,00:10:42`) and produces one JPG file per timestamp. Useful for chapter thumbnails, scene reference shots, or thumbnailing long lectures.
