Create subtitles for obu

Download and install the latest version of Filestar.
Right click on one or more Obu file(s) on your desktop and select Convert with Filestar.
Type create subtitles for in the search box.
Press Run.

What is .obu?

Name: AV1 OBU Video Stream
Extension: .obu
Format: Binary
Category: Video
MIME Type: video/av1
Sample: sample.obu

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Last updated October 3, 2026