Step 1: Provide your MPG files using the button above or by toss and let go.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Fetch your converted VOB files.
MPG to VOB Conversion FAQ
How do I convert MPG to VOB without re-encoding the video stream?
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When the MPG and VOB containers can both carry the same codec (H.264, H.265, VP9, AV1), the converter falls back to a remux: the elementary streams are copied byte-for-byte into the VOB container and only the wrapper changes. A remux of a 1 GB MPG into VOB typically finishes in 5-15 seconds with zero quality loss. Contents are MPEG-1 or MPEG-2 video with MP2 audio; the muxing and the GOP structure are identical to a .mpeg file. A VOB holds MPEG-2 video, AC-3 or PCM audio, and DVD subpicture subtitle streams, split into 1 GB segments by the DVD spec.
Can MPG be converted to VOB without re-encoding the video?
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Yes, and it is the fast path. MPG and VOB share the same underlying box structure, so the video and audio streams are copied across byte-for-byte and only the container wrapper is rewritten. Nothing is decoded and nothing is re-compressed, so a feature-length file finishes in under a minute instead of half an hour, with output quality identical to the source. MPG is the same MPEG program stream as .mpeg — the three-letter extension is a DOS-era truncation, not a different format. 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.
Can I add selectable subtitles once the file is VOB?
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Yes. MPG has no usable soft-subtitle track, so subtitles for MPG content had to be burned into the picture or shipped as a separate sidecar file. VOB carries subtitles as their own selectable stream, so after conversion you can attach an SRT track the viewer can switch on, switch off or restyle.
Does VOB support chapter markers that MPG did not?
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It does. VOB stores chapters as container metadata, so a long recording can be navigated by section instead of by scrubbing a progress bar. MPG has nowhere to put that information, so if the source shipped with a chapter list it was in a sidecar file — hand that to the converter and it gets written into the VOB. VOB preserves the whole DVD payload — multiple angles, multiple audio languages and subtitle tracks all survive inside it.
Is there any point converting between two legacy formats like MPG and VOB?
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Only if a specific piece of equipment demands the target. Both formats come from the same pre-H.264 era, so neither conversion buys efficiency, quality or future-proofing — it buys compatibility with one particular device. If the goal is to keep the footage usable long-term, convert to a current container instead of sideways. MPG inherits every MPEG-2 limitation — heavy bitrate, interlacing, no soft subtitles — plus the confusion of two extensions for one format. VOB is split across files, may be CSS-encrypted, and carries navigation packets that confuse general-purpose players.
Will multi-track audio survive MPG to VOB conversion?
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Yes — every audio track in the MPG (director commentary, alternate languages, descriptive audio) is preserved in the VOB when the target container supports multi-stream audio. MKV and MOV handle unlimited audio tracks; MP4 supports many but some hardware players only see track 1; WebM is capped at one Opus / Vorbis track.
Are subtitle tracks preserved when converting MPG to VOB?
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Soft subtitles (selectable tracks) survive when VOB can carry them: MKV holds SRT, ASS, SSA, PGS, VobSub natively; MP4 only holds mov_text (a stripped-down format). Converting an MKV with ASS styled subs to MP4 will typically downgrade them to mov_text or burn them in. Hardsubs (burned into the video) carry over regardless.
Does MPG to VOB keep chapter markers / DVD-style navigation?
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Chapter metadata transfers between MPG and VOB whenever both containers support a chapter atom (MKV, MP4, MOV). WebM stores chapters in a Matroska-compatible block, so MKV <-> WebM chapters round-trip cleanly. AVI has no chapter spec at all, so an AVI source arrives with no chapters to carry across and an AVI target cannot store the ones it was handed; add markers manually afterwards if you need them.
What about MKV attachments (fonts, cover art) when going MPG to VOB?
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MKV is the only mainstream container that stores arbitrary attached files (TTF fonts for ASS subs, JPG cover art, fan-translated PDF inserts). Going from MPG to VOB drops these attachments when VOB is not MKV — the elementary streams convert, but the attached payload stays in the source. Keep MPG as a backup if you depend on attached fonts.
Which codec does the VOB output use by default?
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The default codec is chosen to match the VOB container conservatively: MKV defaults to H.265 (HEVC) for better compression; MP4 defaults to H.264 for the widest device support; WebM defaults to VP9; AVI uses MPEG-4 ASP (DivX/Xvid lineage). Override via the advanced codec dropdown — AV1 is available for MKV / WebM where you want maximum compression and can wait through the encode.
How does HDR (HDR10, Dolby Vision) survive MPG to VOB?
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HDR static metadata (HDR10 mastering display values, max content light level) carries through to VOB when both containers and the chosen codec support it (HEVC, AV1 in MKV / MP4). Dolby Vision is more fragile — DV profile 5 / 7 / 8.1 in MPG commonly survives only into MKV with HEVC; converting to a VOB container that does not carry the DV layer flattens to HDR10.
Will the MPG to VOB converter keep variable framerate (VFR)?
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MKV and WebM record real per-frame timestamps and handle VFR natively, so MPG VFR survives into a VOB of those formats with no resampling. MP4 nominally stores timestamps too but some players assume CFR; the converter exposes a "force CFR" toggle that resamples VFR MPG to 24 / 30 / 60 fps VOB for problematic targets.
