I dug into the archives and the disk label actually says "WotC / TSR - FR Overland Scans - CONFIDENTIAL - NOT TO BE DISTRIBUTED". There are a bunch of FR overland maps and 4 1600ishx1000ish images that have a tectonic map, a physical map (caostlines with previously and newly mapped), mountains & reefs, and "Areas of Special Interest" that has a set of alphabetic labels without a key (there's undoubtedly a key, just not on the disk). The date on the files is 3/31/1999, but I expect that's when they were written to the CD.

I have no idea what those straight lines were supposed to be. They were in the "areas of special interest" map.

There were a great many folks that did a lot of good work redrawing those maps for the viewer. I did the little Globe program that came with the product, including piecing together the image maps and drawing the national maps (I screwed up in a few places, too). The pretty map in the intro animation was done by an artist at WotC/TSR. The ugly globe map that is solid colors with what looks like the 1st Ed FR wall map and Maztica maps pasted onto them (because that's what happened) was my fault. If the version with the red lines and greenish hatched areas off the coast made it to production (I don't recall any more), then the notations were from the mountains and reefs map with the asterisks indicating tectonic hotspots.