Dealing w/ PlayStation 2 Disc Read Errors?

Habitual submits this tidbit: "Ars Technica has a guide on how to essentially re-align your busted PS2 laser. The fix is meant to eliminate the Disc Read Error that tends to appear as our beloved PS2s age. The procedure isn't for the faint of heart, but it does work."

Can of Air?

[Scrameustache]

Look at the first picture in the article, the caption says "PS2, screwdrivers, and a can of air".

What the picture shows is: A PS2, screwdrivers, and needle-nose pliers.

So, it may be ArsTechnica, but if they can't tell the difference between a can of air and pliers, I'm not sure I want to trust them with my precioussss PS2...