Lots of my work is based on ImageMagick and the use of other DDS converter slows the process
( my software -> DDS convert (DXT5 or other) -> ImageMagick -> DDS convert again! (A8) -> my software )
After all the format isn't very difficult! Only one channel - 8-bit uncompressed data!

A8 sample image: http://divastudio.net/val/A8sampe.dds
PS: I'll be happy just for A8 input for now (read only)! Thanks!