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MPG subtitle facts
| Item | Result or policy |
|---|---|
| Tested audio | mp2 |
| Detected container | mpeg |
| Subtitle targets | 110+ (118 currently listed) |
| Output | SRT / VTT / ASS |
| Video upload | No; only extracted audio is uploaded |
| Account duration limit | 8 hours; guest limit 3 hours |
| Full task price | USD $1/hour, rounded up to a cent |
Recognize an MPEG programme stream rather than its suffix alone
MPG and MPEG filenames commonly identify MPEG programme streams, but extensions can be misleading. The file contains interleaved media packets, and local inspection needs to distinguish the container from a raw elementary audio or video stream. SubLunio also checks the actual programme-stream header when present.
This prevents a long audio payload near the beginning from being treated as the whole file’s format. Correct container detection is important for finding the intended stream and duration. A file that has merely been renamed to MPG still has its original structure and may require a different supported decoding path.
Work carefully with DVD-era and camera exports
Older MPEG material may come from disc-authoring workflows, cameras or edited archives. A complete, unprotected programme-stream export is more suitable than a partial fragment copied without its expected context. Choose the edition you are permitted to process, and verify that a local player can reach its end.
SubLunio does not remove disc encryption or recover missing pieces of an archive. If your normal editing workflow combines several source segments, generate subtitles from the resulting continuous file. A subtitle created for one segment cannot simply be placed on the full programme without adjusting its timing.
Audio and video support are separate decisions
An MPG may pair MPEG video with MP2 audio or another supported soundtrack. Subtitle generation focuses on the selected speaking audio. The image might not display natively in the browser, in which case a subtitle text preview with timestamps lets you read the transcription and translation.
Use a compatible local player for the final viewing check. Keep the subtitle beside the same programme-stream file, and confirm a conversation after any chapter or segment boundary. A fixed playback delay can help diagnose an offset, but it cannot correct a different cut or a missing portion of the recording.
The MPG check also exercises repeated media inspection
Our original MPG fixture contains MPEG-2 video and MP2 audio. Chromium and Firefox pass conversion and preserve the two synthetic tone positions. The extracted MP3 is inspected again inside the same worker, which helps verify that the earlier programme-stream format selection does not leak into later probes.
That repeated-inspection detail matters for ordinary use: choosing a file, auditioning a track and validating the result all reuse media tooling. The published check establishes this specific workflow with a clean sample. It does not guarantee every damaged MPEG archive, nor does a tone fixture assess how accurately speech in a real recording will be translated.
Choose a language, then evaluate a preview
Select the file above, choose its speaking track and pick the language you want to read. SubLunio offers 110+ subtitle target languages. Source speech recognition has a separate supported list and defaults to Auto; setting the interface language does not limit your target choice. A brief listen can prevent a commentary or alternate dub from becoming the source of an otherwise well-timed translation.
The free web preview starts at the first subtitle and covers up to 5 continuous minutes. Compare the text with a clear line and a more difficult passage. You can start without an account, then sign in to retain the same valid task and continue with the audio already uploaded. A concise glossary can guide recurring names or specialist terms.
Continue and save a portable subtitle
Full generation is priced at USD $1 per hour of the entire video, rounded up to a cent. The preview portion is included in that full duration. Use account credit or pay for the task; card payments have a $1.00 minimum and unused credit remains available. The price is based on duration rather than the original video file size.
Download SRT, VTT or ASS, choosing translated, original or bilingual text. Keep the subtitle beside the exact source edition and test dialogue at several points. The video stays local throughout extraction; server audio is temporary. Save your own subtitle copy and process only material you have the necessary rights to use. Automatic results still need review for names, meaning and timing.
A few things worth knowing
Does an MPG extension identify the real container reliably?
Not by itself. Local inspection and the actual programme-stream header are used to identify the media.
Which audio format is exercised by the MPG fixture?
The synthetic programme stream contains MP2 audio alongside MPEG-2 video.
Can subtitles for one MPG segment be used on a joined programme unchanged?
Usually not. Joining segments changes their positions; generate from the final continuous edition or retime the subtitle.
Why inspect the resulting MP3 again after reading MPG?
Reinspection checks output validity and helps catch media-tool state left over from the input format.