[PSX] ISO: a question about converting RAW to ISO?

I downloaded a [psx] game called eternal eyes which was said to be in original psx format, thus the need to covert it to ISO format. The downloaded file contained to files namely, "EBOOT.PBP" and "KEYS" having 373 mb and 1 kb respectively. Is converting original format to raw format the same as creating an ISO file like that of a virtual drive?

eboot is PSP format not PSX