@substring Of course, thank you...

@gkralicek2 Hi, thanks for this reply, but I would like to know which configuration file to modify to add the mame2010 core to the list of cores without having to replace it with imame4all. It's possible?? I have added the file mame2010_libretro.so to the folder /usr/lib/libretro but it does not appear in the list of cores ...

Thanks in advance...