WMV থেকে VOB রূপান্তর সম্পর্কিত প্রায়শই জিজ্ঞাসিত প্রশ্নাবলী
How do I re-encode WMV to VOB without losing video quality?
+
আপনার WMV ফাইল আপলোড করুন এবং রূপান্তরক একটি CRF-ভিত্তিক পুনঃএনকোডিং চালিয়ে দর্শনীয়ভাবে-ক্ষতিমুক্ত VOB আউটপুট নির্ধারণ করবে (ডিফল্ট হিসেবে CRF ১৮, কম মান = বড় ফাইল / উচ্চমান)। VOB কন্টেইনার অনুযায়ী কোডেক নির্বাচন করা হবে - broad-compat MP4-এর জন্য H.264, আকার-সম্পন্ন MKV-এর জন্য H.265, WebM-এর জন্য VP9, নতুন পাইপলাইনের জন্য AV1।
Which video codec does the VOB output use?
+
It depends on the VOB container. MP4 defaults to H.264 for the broadest playback support across phones, browsers, and Smart TVs. MKV defaults to H.265 / HEVC for roughly half the file size at equivalent quality. WebM defaults to VP9. The advanced options expose explicit codec choice if you need to override.
Will my audio track survive WMV to VOB conversion?
+
Yes. When WMV and VOB share an audio codec (e.g. both carry AAC), audio is re-muxed with no re-encode — bit-identical. When the codecs differ, audio is transcoded to AAC / Opus / Vorbis depending on what the VOB container supports. Multi-track audio (commentary, alternate languages) is preserved.
Can I keep the original framerate when converting WMV to VOB?
+
By default yes — a 24fps WMV stays 24fps in VOB; a 60fps WMV stays 60fps. If you need to change rate (e.g. interlaced 29.97 → progressive 30, or 60 → 30 for upload limits), the framerate option handles 3:2 pulldown, deinterlacing, and frame-blending in the same encode pass.
How much will the file size change going from WMV to VOB?
+
Same-codec re-mux (WMV H.264 → VOB H.264 just changing container): nearly identical size. Codec change can swing dramatically: H.264 → H.265 typically halves the file at the same visual quality; VP9 is roughly comparable; AV1 cuts another 20-30% but is slower to encode.
Will the VOB file play on iPhone, Android, and Smart TVs?
+
MP4 / H.264 plays natively on every modern device. MOV / H.264 plays on Apple devices and most TVs but not always on older Android. MKV needs VLC on iOS. WebM is browser-first. The advanced options include a "device compatibility" preset that picks the safest VOB codec / container for your target.
How long does converting a 1-hour WMV video to VOB take?
+
Same-codec re-mux is near-instant — 30 to 60 seconds for a 1-hour file. A full codec re-encode runs at roughly 0.3-0.7x source duration on our GPU pipeline, so a 1-hour WMV → VOB finishes in 18-40 minutes depending on resolution and target codec.
What is the maximum resolution supported for WMV to VOB?
+
Up to 8K (7680×4320) on Premium plans. Free conversions are capped at 4K (3840×2160) by the per-file size limit. HDR metadata (HDR10, HDR10+, Dolby Vision when present) is carried through where both WMV and VOB containers support it.
Is my WMV video private during conversion to VOB?
+
Yes. Uploaded video files are processed in isolated workers, never viewed by a human, never indexed, and deleted within minutes of completion. The retention window is documented at /privacy/ and we publish no training corpus from user uploads.
Can I crop, trim, or rotate during the WMV to VOB conversion?
+
একই ধাপ নয় — প্রথমে ক্লিপ করতে /video-trim/ অথবা /video-cutter/ ব্যবহার করুন, তারপর WMV → VOB রূপান্তর চালানো হবে। পুরো WMV কে পুনরায় এনকোড করার চেয়ে শুধুমাত্র অব্যবহৃত ভিডিও মুছে ফেলার জন্য লাইন অনুসারে ট্রিম এবং রূপান্তর করা দ্রুততর।
Why is the VOB file blurry compared to the WMV source?
+
Almost always a bitrate-too-low setting. Re-encoding from a high-bitrate WMV into a default-CRF VOB compresses heavily on motion-rich scenes. Push CRF down to 16-18, or set an explicit target bitrate matched to the WMV source, and the VOB regains its clarity.
Does the WMV to VOB converter handle subtitles?
+
Yes — embedded subtitle tracks (mov_text in MP4, SRT/ASS in MKV) are preserved when both WMV and VOB containers support them. Burned-in (hardsub) subtitles transfer automatically because they live in the video frame itself.