@paradadf my network wasn't strong enough for the transfer of files. That's why it wasn't working. I put my usb drive in to pc where I had my roms and transfer them and they worked fine. But roms with multi bin files and one .cue wouldn't work so I just use eboot pdp instead. saves time and space to. Still cant get fds, dreamcast, 3do,pc engine CD are x86k to work.
Total bytes on device = 26.4 GB (28,351,770,624 B)
Free bytes on device = 1.43 GB (1,535,975,424 B)
Total bytes for user = Unknown
Free bytes for user = 68.8 MB (72,155,136 B)
Bytes per allocation unit = 4.00 KB (4,096 B)
Managed to figure out WinSCP and deleted some roms and added some new stuff. More a case of taking a gamble and not really knowing what I was doing but it seems to have worked. Need to sort artwork guessing via scraping system so will give that a go but the actual games work which is the main thing. 30+ years ago used to write games on zx spectrum or rather retype them out of magazines, and typed out pages of code to play Stranglers Golden Brown on a BBC computer at school in the 80s but those days are long gone haha