VOB to M2TS Converter
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Supports: VOB
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Need help?How to Convert VOB to M2TS Online
- Upload Your VOB File: Drag and drop or click "+ Add Files" to select your VOB files. Batch upload is supported, so you can queue multiple DVD chapters (VTS_01_1.VOB, VTS_01_2.VOB, etc.) and convert them in one session.
- Pick a Quality Preset: Default is Very High (Recommended). Drop to High or Medium for smaller files, or pick Constant Bitrate / Variable Bitrate under File Compression to target a specific Mbps. Use Constant Quality (CRF) for visually lossless H.264, or Specific file size when you have a hard size budget.
- Set Resolution and Trim (Optional): Under Video resolution keep original (480p for NTSC DVDs, 576p for PAL), pick a Preset Resolution like 720p or 1080p, scale by Resolution Percentage, or enter custom Width x Height. Use Trim with a Time Range to cut out menus, FBI warnings, or extract a single chapter.
- Convert and Download: Click "Convert". Files process server-side without your machine encoding locally — no sign-up, no watermark, no software install.
Why Convert VOB to M2TS?
VOB (Video Object) is the MPEG-2 program stream container used inside DVD-Video discs, capped at MPEG-1/MPEG-2 video with MP2, AC-3, DTS, MLP, or LPCM audio. M2TS is the BDAV MPEG-2 transport stream container used by Blu-ray and AVCHD — it supports H.264/AVC, VC-1, and MPEG-2 video with Dolby Digital, Dolby TrueHD, DTS, DTS-HD MA, and LPCM audio. Converting from VOB to M2TS unlocks Blu-ray-compatible playback paths that DVDs can't reach.
- Author a Blu-ray from DVD footage — Blu-ray players and authoring tools (TMPGEnc Authoring Works, multiAVCHD, tsMuxeR) consume M2TS natively. VOBs require remuxing first because their PS structure isn't valid on BD discs.
- Feed an AVCHD camcorder workflow — AVCHD camcorders from Sony, Panasonic, Canon, JVC, Hitachi, and Leica record into the BDMV/STREAM/ folder as .MTS/.M2TS. Converting old DVD captures to M2TS lets you merge them into a unified AVCHD timeline in Vegas Pro, PowerDirector, or Catalyst.
- Stream to a smart TV or media player — Samsung, LG, and Sony smart TVs and devices like the WD TV Live, Dune HD, and Zappiti playback M2TS smoothly over DLNA/SMB. VOB playback on these devices is hit-or-miss because of the .IFO/.BUP dependency.
- Migrate to higher-quality video codecs — VOB locks you to MPEG-2 at ~9.8 Mbit/s. Re-encoding to M2TS with H.264 at the same visual quality cuts file size roughly in half, freeing space without dropping resolution.
- Combine multiple DVD VOB segments into one file — DVDs split video into 1 GB VOB chunks at the filesystem level. Converting to a single M2TS gives you one continuous stream for editing or playback without seam glitches.
- Preserve AC-3 surround for home-theater receivers — M2TS keeps the original Dolby Digital 5.1 stream intact and adds DTS-HD MA / Dolby TrueHD as upgrade options when you're going through a Blu-ray-grade receiver.
VOB vs M2TS — Format Comparison
| Property | VOB | M2TS |
|---|---|---|
| Container base | MPEG-2 Program Stream (PS) | MPEG-2 Transport Stream (TS) |
| Used by | DVD-Video (since 1996) | Blu-ray and AVCHD (since 2006) |
| Video codecs | MPEG-1, MPEG-2 | MPEG-2, H.264/AVC, SMPTE VC-1 (Blu-ray); H.264 only (AVCHD) |
| Audio codecs | MP2, AC-3, DTS, MLP, LPCM | AC-3, E-AC-3, DTS, DTS-HD, Dolby TrueHD, LPCM |
| Max resolution | 720x480 (NTSC) / 720x576 (PAL) | 1920x1080; 4K on UHD Blu-ray |
| Typical max video bitrate | ~9.8 Mbit/s | 24 Mbit/s (AVCHD), up to ~40 Mbit/s (Blu-ray BD-ROM) |
| Subtitles | VOBSUB (bitmap) via SUB/IDX | Blu-ray PGS bitmap subtitles |
| Companion files | .IFO + .BUP required for chapters/menus | Self-contained; CLPI/MPLS sidecars are optional |
| Filesystem cap per piece | 1 GB chunk (DVD UDF) | None inherent; AVCHD folder structure suggested |
| Native playback | DVD players, VLC, most media tools | Blu-ray players, PS4/PS5, Xbox Series, smart TVs, VLC |
Output Codec & Compression Mode Guide
| Setting | When to pick | Notes |
|---|---|---|
| H.264 (default) | Blu-ray, AVCHD, broad device support | Halves file size vs MPEG-2 at the same quality. Universally decoded in hardware since ~2010. |
| H.265 / HEVC | Modern playback only (4K TVs, recent PCs) | Another ~30-40% size cut vs H.264 but breaks compatibility with strict Blu-ray spec — fine for personal NAS, risky for disc authoring. |
| MPEG-2 | Strict Blu-ray spec compliance, no re-encode | Best when you're remuxing rather than re-encoding so the original VOB video stream survives unchanged. |
| Constant Quality (CRF) | "I want it to look identical to the source" | CRF 18 is visually lossless for H.264; CRF 23 is the FFmpeg default. File size varies with content. |
| Constant Bitrate | Strict size budget, simple streaming | Predictable size; lower quality on complex scenes. Pick 8-12 Mbit/s for 1080p H.264. |
| Variable Bitrate | Best size/quality trade-off | Lets the encoder spend bits where the picture needs them. Pair with a Max Bitrate cap when targeting AVCHD's 24 Mbit/s ceiling. |
| Specific file size | Burning to a fixed-capacity disc | Targets exact MB/GB output. The encoder picks the bitrate to hit it. |
Frequently Asked Questions
Will my Blu-ray player play the M2TS file directly?
It depends on how you deliver it. Most modern Blu-ray players (Sony, Panasonic, LG, Samsung) play M2TS files from a USB stick or burned data DVD as long as the codecs are inside spec — H.264, MPEG-2, or VC-1 video and AC-3/DTS audio. To play from a true AVCHD or BD disc, the M2TS has to sit inside the proper folder structure (BDMV/STREAM/, plus CLIPINF and PLAYLIST). Tools like multiAVCHD or tsMuxeR build that structure around the converted M2TS.
Why are my converted files capped at standard-definition resolution?
DVDs only store 720x480 (NTSC) or 720x576 (PAL) — there's no hidden HD pixels inside a VOB to recover. Picking 1080p in the Preset Resolution upscales the frame using a Lanczos filter, which sharpens edges but doesn't add real detail. For a clean DVD-to-Blu-ray archive, keep the original resolution and let your TV upscale, or upscale to 720p (a 1.5x bump that hides less interpolation than 1080p).
How do I keep the 5.1 surround audio from my DVD intact?
VOB stores Dolby Digital (AC-3) 5.1 as one of its audio tracks, and M2TS supports AC-3 natively, so a passthrough remux preserves all 6 channels. Choose AC-3 in the audio codec dropdown rather than re-encoding to AAC or stereo. If your DVD had a DTS track, M2TS preserves DTS too — both are mandatory Blu-ray audio formats per the BDAV spec.
Will chapter markers and menus survive the conversion?
No. DVD chapters and menus live in the .IFO and .BUP sidecar files, not inside the VOB itself, and M2TS doesn't carry a DVD menu structure. Chapter timestamps can be re-applied during Blu-ray authoring (TMPGEnc, DVDFab, Adobe Encore), but the animated DVD menu has to be rebuilt. For a quick-and-dirty conversion, the M2TS is just the main feature with no menu — which most people prefer anyway.
What's the difference between .M2TS and .MTS files?
They're the same container with two extensions. Camcorders write .MTS to the SD card; once you import via the manufacturer's software, the file is renamed to .M2TS (with companion CLIPINF/PLAYLIST data). The byte-level bitstream is identical — VLC, MPC-HC, and FFmpeg treat them interchangeably. We use the .M2TS extension because it matches the imported AVCHD and Blu-ray naming. Need the camcorder-style extension? Use Convert VOB to MTS instead.
Should I pick H.264 or H.265 for the output?
Pick H.264 if you're authoring an actual Blu-ray, feeding an AVCHD workflow, or want playback on any TV made in the last 12 years. The Blu-ray spec doesn't allow H.265 in standard BD-Video — only Ultra HD Blu-ray does, and authoring those requires AACS 2.0 keys. Pick H.265 only when the target is a personal NAS, recent smart TV (2017+), or modern computer — you'll save 30-40% file size at the same visual quality.
Can I merge multiple VOB files (VTS_01_1.VOB, VTS_01_2.VOB) into one M2TS?
Yes. Upload all the VOB segments belonging to the same title set in order. The DVD splits a single movie into 1 GB chunks because of the DVD-Video UDF filesystem layout — they're meant to be played back-to-back as one continuous stream. Our converter joins them into a single M2TS with no seam glitches. If you'd rather output a more editor-friendly container, see Convert VOB to MP4 or Convert VOB to MKV.
Why is the output file larger than my original VOB?
If you picked H.264 with Constant Quality at CRF 18 and the source VOB was a low-bitrate MPEG-2, the encoder may spend more bits than the original to preserve every visible detail. To get a smaller file, switch File Compression to Variable Bitrate and set a target around 6-8 Mbit/s for SD content, or use Specific file size and dial in your target size in MB. The encoder will reverse-solve the bitrate.
Is there a file-size limit?
The free tier handles typical DVD VOB segments (1 GB chunks). For larger batches or whole-disc archives, sign-in raises the cap. Files are processed and then removed automatically — see our privacy policy for retention details.