Jim, I agree with Jackie's comments. My past experience was with the first CD, sold around 1995. It was good for the time, but it was primarily a collection of GEDCOMs of variable quality. The better GEDCOMs were fairly well sourced considering what was available at the time. With internet genealogy in its infancy, it was gold for data-starved hobbyists. Times have changed a good deal in 25 years!
It's my understanding that the current CDs were derived by merging the original GEDCOMs, plus new and revised GEDCOMS, plus Yvon Cyr's own research, into one massive database. Some reconciling was done using Stephen White's DGFA and other sources. The resulting CD might be helpful for providing clues in your search, but it may be somewhat dated. And as with any research performed by others, I would be careful to confirm the data through primary and quality secondary sources, and then cite those sources instead of the CD.
Regarding the articles on the website, there is interesting information there. Some, maybe most, was the work of other authors, published with their permission. Some of it may be dated, but overall worth a read.