The 0.2.97.29 set is highly regarded for its rock-solid performance with classic arcade hardware. It is the mandatory version for several specific systems in modern handheld setups:
This specific version matches the legacy lr-fba or lr-fba-next cores found in older RetroArch, RetroPie, and Recalbox builds. fba arcade set v0.2.97.29
FBA Arcade Set v0.2.97.29 is a legacy ROMset primarily used for the FinalBurn Alpha (2012) fba arcade set v0.2.97.29