A caption file ends in .vtt but the player treats it as SRT

IPTV Complete Forum editorial lab

2026-11-13

Check the file header and timestamp notation before renaming the extension.

Reproduce the condition

The WebVTT sample below is a small synthetic file. It carries no active media source or account data.

1
00:00:02,000 --> 00:00:05,000
Example caption

What the local check found

What to do next

Use a proper subtitle conversion tool. A renamed SRT file retains its comma notation and may lack a WebVTT header.

What to share if the problem continues

• The exact parser result and version of the importer or player.
• A minimal redacted sample with dates, IDs or segment names retained as needed.
• The output after checking the source export separately from the viewer app.