They are not straight ports, I have played them, they are different from the pal and NTSC versions on the playstation 1.I'm almost inclined to think they were ported from the pc version, but I don't have enough experience playing that. We had an issue for a record at one time, and it was deemed wrong for some reason. Anyway, after enough digging, it was the ps3 download version.
You should pick up a wo1 copy and a Negcon, then you will get some rocking times.