Hello! That sounds familiar with the EZ Flash Omega, if I recall correctly it can happen if you drag the ROM directly from the .zip file rather than extracting and then copying. Please let me know if that helps! For the flashing to the repro cart, you will need a 32MB SRAM or FRAM cart (the demo only needed 16MB I think). Unfortunately we don't have an update on the pre-orders, we are waiting for some emails as well.