As i have hundrends of roms it is very annoying and time paining using internal scraper :( Is there any script or automated procedure to go on? And also downscaling images to specific width/height?
With retropie v2.x the internal scrapper can do it automaticly juste turn off the option “user decides on conflits”. if you have many roms, many times retropie tell you have not anought memory. reboot and continue…
if you don’t wan’t to do it directly in retropie, do what floob said