Medal of Honor image is 708MB. What CD-R for that ???

I don't think there's any danger of the forum not growing. It was 9,000 in February and it's more than 15,000 now and BOT-CK has helped the thousands as well as telling people, perhaps a little harshly, when they've misunderstood the point. Plus of course the wicked who stay with the forum waiting for BOT-CK's next gem!

In this case, it's obvious. A PS1 game has to be within the scope of a CD. So if it came off a CD (whether or not the img file is > 700MB), it'll go back on a CD. That's fairly obvious I'd have thought.