Step 1: Supply your VOB files using the button above or by haul and lay.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Get your converted M4V files.
VOB to M4V Conversion FAQ
What does the VOB to M4V converter do?
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VOB is a legacy container, often poorly supported on modern devices. Converting to M4V rewraps the video with a current codec (H.264 / H.265 / VP9) for broad browser, phone, and TV compatibility.
Will resolution and frame rate be preserved in the M4V?
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Yes. VOB → M4V keeps resolution, frame rate, and aspect ratio unchanged by default. To change them, use the Resize or Speed tool on the result.
Will the VOB play smoothly on modern devices after converting to M4V?
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Yes. Legacy VOB files often fail to play in modern browsers and on iOS / Android. M4V uses widely supported codecs that play natively on phones, tablets, smart TVs, and every modern browser.
Will the converted M4V be a different size than the VOB?
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Modern codecs compress better, so M4V from a legacy VOB is typically 30-60% smaller at equivalent quality. Conversions in the opposite direction can grow the file.
My VOB footage shows comb lines on movement — will that carry into the M4V?
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It will unless you deinterlace, and VOB content very often is interlaced because the format comes from the broadcast and DVD era. Interlaced frames store two half-height fields captured a fiftieth of a second apart; on a progressive-scan phone or monitor that reads as horizontal combing on anything that moves. Turn on the deinterlace option and the encoder weaves the fields into whole progressive frames before writing the M4V. 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.
My VOB recordings are split into numbered parts — does M4V have the same limit?
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No, and that is one of the better reasons to move. The VOB container has a practical single-file ceiling that long or high-bitrate recordings run straight into, which is exactly why old captures arrive as part1, part2, part3. M4V has no equivalent limit, so the pieces can be rejoined into one continuous file. VOB is split across files, may be CSS-encrypted, and carries navigation packets that confuse general-purpose players.
Will the M4V I get back be locked to a store or an account?
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No, and the extension is what causes the confusion. M4V names a video file with the same internal structure as an ordinary MP4; the ones sold through a store are additionally wrapped in the seller's protection, and that wrapping is a property of the purchase rather than of the format. A file converted here has none of it — a plain, unprotected video that happens to carry that extension, playable wherever the extension is recognised and convertible onward as many times as you like. M4V is Apple’s variant of MP4, used by iTunes and the Apple TV app for films and TV episodes.
What should I watch for converting a VOB from a disc or a broadcast recording?
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Interlacing and aspect ratio, in that order. Material made for television is interlaced almost without exception, so deinterlacing has to be on or every moving edge arrives combed; and a great deal of it is stored as non-square pixels with a flag saying how wide to display it, which a converter that ignores the flag turns into a stretched or squashed M4V. Check the first few seconds of the output before running a batch — both faults are obvious immediately and invisible in the settings.
Why does my VOB file fail to convert to M4V?
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Almost always DRM. Some VOB files are encrypted at the bitstream level by the store or software that issued them, and an encrypted stream cannot be decoded by us or by anything else without the licence key. Files you recorded, exported or downloaded unprotected convert normally; a licensed purchase will not, and no converter can honestly promise otherwise.
Is it worth converting old VOB recordings to M4V at all?
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For anything you intend to keep, yes. VOB belongs to an earlier generation of video tooling and the software that reads it is steadily disappearing from phones, browsers and operating systems. Moving the footage to M4V now, while a clean decoder still exists, is the difference between an archive you can open in ten years and one you cannot. M4V keeps chapter markers, artwork and subtitle tracks in the shape the Apple TV app expects, which plain MP4 often loses.
Is there a file-size limit when converting VOB to M4V?
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Anonymous uploads are capped at a generous default; signed-in free accounts get a higher cap, and Pro accounts have no per-file limit. Browser memory is usually the practical constraint long before our server-side limits kick in.
Can I batch-convert several VOB files to M4V at once?
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Yes. Drop or pick multiple VOB files in one upload — the converter processes them in parallel and returns a ZIP of the M4V results. There is no need to repeat the upload step per file.
