Greetings... VTDb is a special file format which uses LZS77/LZW compression and 64-bit blowfish encryption to store the graphics used in PowerDraw and its stores it in format which is easy converted to any texture format specified at run-time, which means it's much better to load all images from VTDb directly to image list instead of loading them from .BMPs or .TGAs. Oh, and VTDb means Vector-Texture Database