Quoted from snakesnsparklers:Can you post a screenshot of your USB drive folder in Windows? If you have file extensions hidden then it's possible that you've named it Chroma.rom.rom but this can easily be solved.
That can definitely happen.
Some times a fresh FAT32 re-format using Windows of a smaller capacity thumb drive with chroma.rom saved to it without altering the file name in any way downloaded and saved directly to the thumb drive from the website will get you going.