static IEnumerable <ImportedSpecialBinaryInfo> ToBiosCandidateList(GameProgramInfo gameProgramInfo) => DatastoreService.ImportedSpecialBinaryInfo .Where(sbi => gameProgramInfo.MachineType == MachineType.A7800NTSC && (sbi.Type == SpecialBinaryType.Bios7800Ntsc || sbi.Type == SpecialBinaryType.Bios7800NtscAlternate) || gameProgramInfo.MachineType == MachineType.A7800PAL && sbi.Type == SpecialBinaryType.Bios7800Pal);
static Bios7800 GetBios7800(GameProgramInfo gameProgramInfo) => PickFirstBios7800(ToBiosCandidateList(gameProgramInfo));