Most likely your external HDD is not formatted in FAT32. In that case you can have your 4gb+ files there, but your ps3 will not recognize the external HDD. If your external HDD is formatted in FAT32, then you can't possibly have any 4gb+ files on it. Because files bigger than 4gb are not supported by FAT32.
yea, it's fat32 but i transfered the file from my computer using ftp server, and from the pc its on the external, now my question was since fat32 doesnt support 4gb+ , it wouldnt run at all? or would it, since i already have all the necessary files on the external?
Does the filesize change drastically like when copying with filemanager, resistance goes from 17.5gb to 10.5gb when copied from internal to external? either something is missed or its compressed or something?
Anyway, i had no idea open manager even did this, i'll give it a go, see what happenes.