Just in case anyone's interested, in my posting here, the attached program is capable of exporting compressed images. This is useful as a full screen VBXE standard resolution would be 80640 bytes if not compressed so it's a waste of disk/cartridge space. Currently, it uses deflate on 8kb blocks, although it will not compress a block if the compressed data comes out longer. This typically gives a 1/3 reduction in file size, but files from Amiga, C64 etc. give much better compression ratios due to