The Blair witch project (1999)
The last exorcism (2010)
The others (2001)
Now that doesn't seem like too bad a collection even though the horror movies are of varying quality (which I would have difficulty calling any of them modern horror classics). What's most nasty in this case is the price (amazon.ca has it listed at 43.49 for DVD and 61.49 on Blu-ray (Taken on June 4th/2012)). All of those movies are old enough that I could throw together the same collection myself scanning the DVD bins of my local second hand store at near half the cost. Blu-ray might be a little harder to come by but I wouldn't say impossible.
Many times I'm all for these convenient collection packages, but in this case I would suggest skipping it and picking these up individually.