Convert OTB to AAI

The OTB (Over The Air Bitmap) file extension, developed by Nokia, is used for transmitting black and white bitmap images between mobile phones, particularly Nokia and Siemens models. These images, with a maximum resolution of 255x255 pixels, are often sent via SMS in either hexadecimal text or binary format. Historically, OTB files were popular in the early days of mobile communication for sending simple graphics, icons, and wallpapers when data transmission speeds were limited.

The Dune HD AAI file extension, AAI, stands for Alpha-Alpha Image and is a raster image format used by Dune HD media players to display images with transparency, such as icons for Internet radio stations or channels. It stores 32-bit RGBA image data, which includes an alpha channel for transparency. This format is primarily used within Dune HD's ecosystem for organizing and displaying media content. The AAImageGen app, available from Dune HD, allows conversion of images like JPG, PNG, and BMP to AAI format.