Does there exist a comprehensive compilation of Erdos's open problems?

I would be most impressed if there existed such a list! The closest thing I've found is this long list of references to papers Erdős published containing problems. I don't know if it is comprehensive, and it has some overlap with the content of Chung and Graham's book, but it at least contains the names of the Erdős papers cited in Guy's Unsolved Problems in Number Theory.

Although not an answer to the original question, but let me mention that Erdos' papers up to 1989 are available here.

This is not a direct answer to your (good!) question, but Research Problems in Discrete Geometry by Brass, Moser, and Pach (Springer 2005) cites Erdős more than 100 times.