The 2.1 version of Aorta for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The most popular version among the program users is 2.1. The program belongs to Audio & Video Tools. This free Mac app was originally produced by Gregory Smith. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
Aorta (the Aleph One Replacement Texture Accessory) is an open source tool for creating high quality RGB and S3TC / DXTC (using the Squish library) DDS textures. The application allows you to convert many files in the same time. This app is very easy to use.
You may want to check out more Mac applications, such as VCode, Aiseesoft WMV Converter for Mac or BurnToDisc for iPhoto Uninstaller, which might be similar to Aorta.