Convert avi to dds Online: avi2dds

You can use Tom's Editor to easily convert images from
Microsoft Audio/Visual Interleaved .AVI to Direct Show Surface .DDS.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

AVI

Microsoft Audio/Visual Interleaved is an image format with extension AVI.

DDS

DDS are files invented by Microsoft to be used in games, mostly as textures. Images can be compressed to save space but the compression methods defined by DDS are all very fast in terms of coding and decoding.