Lockblocks - laserlock

When it comes to these protections, which is best to use as a reader, LiteOn LTR40125W (CD-R/W) or LTD166S (DVD)?
Does anyone know which protection is used for “The Longest Journey”?

LiteOn 40125W is a more accurate error-reader than the LTD166S (time to start calling it XJ-HD166S now ;))