Usage:

1. --append-output - appends current scan to a pre-existing .csv
2. --ignore-existing - doesn't process files that are already in the output csv
3. --no-contents-checksum - skips the composite checksum calculations (speed up)
4. --allow-extensions extension without . - allows scanning of compressed archives. useful for xbox.
5. -o filename.csv - output to a specific name (default is results.csv)
6. -f filename.iso - pass a single file to the script