@voljega yes thanks, is just that i got desperate in the english forum, i was reading at the maual in the wiki, and saw that the imame4all roms romname folder is mame, since the roms i had in my computer where part of a retropie image i dowloaded, i was using a imame4all rom folder instead, that was my mistake, im now renaming the rom folder and let you know, thanks for the help