While I didn't purchase this item on Amazon.ca, I did pick it up at (local retailer omitted) with an Amazon.ca price match.
The CDW-92 is a 2x2 up case, and competes well with the CDW-128. 128 link here - [...]
While I've owned 2x2 cases before, the 92 has the advantage of being able to open full and flat, making reading of each disc a snap. And unlike the 128 which is really wide, I can hold this one in a hand and flip with the other. Another advantage of the 92 case is that it can fit snugly away inside an Ikea Benno black-brown DVD tower with only about 1.5 inches protruding. I think I can even fit 2 of these side by side in the tower. Pretty sweet. It's a well thought out product which doesn't compromise in any regard.
I use the 92 to house all of my old DVDs which, ironically, is just one or two discs shy of filling it. My new BLUs reside in their cases with bonus discs, etc, as the DVDs once did. Now my 92 can easily travel with me in the car for trips to the cottage.
I've since repurposed the deeper and slightly larger capacity 128 to computer file duty, as it's well suited to the depth of the file cabinet I own in the Ikea Effektiv line.
So to recap -- ultimate portability and ease of use, go with the 92. For 25% more storage, and the ability to see more titles at once, go with the 128.