I bought the 4 parks one world album, which is the one Scrappin Bear has described - I have added another couple of packs of page protectors and it is upto about 30 pages. It is full to breaking and the rings and the page-protectors both look like they will break very soon.
I wouldn't buy this album if you think you will need more than the 15 pages it comes with (and I couldn't possibly have put in everything I wanted in less pages, I still ended up rationing the pages towards the end)
Bev