Multi-disc purchases from Real.com. How do I sort out the individual CDs?

I bought a copy of Tosca, the opera, from the Real.com online store, and if I were to buy it in a music store, it would be 2 CDs worth of material.

The problem is that Real shuffles the CDs together, so both Track 1s will play, then both Track 2s, and so on, and there doesn’t seem to be a disc number column that I could sort on.

Is there any way to get the tracks to play in the right order, i.e., all of Disc 1 in order then all of Disc 2? I could build a play list, but then how am I even to know that the for both listings of any given track number, that the first disc is listed first?