This is an alternate version of FDS Builder, my tool to split .fds images into separate files as well re-assemble the files into a new .fds.

This version will number the files sequentially, rather than using the internal file ID numbers in the file headers. I’d personally recommend using the older versions that name the PC files by the FDS files’ internal file name or header, and use this one as a last resort (if the game does not assign unique IDs to each file).