Explanation on Differences in Parallel Rares
With the advent of the Parallel Rares in the Duel Terminal, there are now two distinct breeds, categorized by how they are made, how they feel, and the pattern of the Parallel Coating.
This variety is used on every Non-Duel Terminal Parallel Rare. The card has a hard film, and feels very rigid. In addition, if you shine it up to the light, you can see a series of "bands" on the card, four going across, and two going down. If you shine a light on the coating, you will be unable to see the individual dots, and it will look like a uniform haze composed of a multitude of lines.
Used specifically on the Duel Terminal Parallel Rares, this is a marked enough shift in detail and technology to be described independently. The card itself feels exactly like a common, the Parallel Film having little immediate impact. If you hold the card up to the light, you will be able to make out a series of circle-like dots all across the card, without any of the banding patterns of the prior technology. When reflected, the light makes these look like small "Peardrops".
From Duel terminal Chronicle DTC1 onwards, there is a new type of Duel Terminal Parallel Rare. This variety features a "Cubical" pattern.