Convert obu to aai

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 convert to aai in the search box.
Press Convert.

What is the difference between .obu and .aai?

Name: AV1 OBU Video Stream; Dune HD Image
Extension: .obu; .aai
Format: Binary; Binary
Category: Video; Raster Image
Developer: Dune HD
Description: AAI is a raster image file format associated with Dune HD media players. It is a simple uncompressed truecolor format, with support for alpha transparency.
MIME Type: video/av1; application/octet-stream
Sample: sample.obu; sample.aai

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Last updated October 3, 2026