My DD really liked the Reader Rabbit products at 3-6yo.
I consider them to be quite high quality. My mom (an elementary educator and reading specialist) was also very fond of them and used them in her classroom. I have no idea how compatible they are with modern operating systems, though-- the ones that we used were for W-95 or W-98, maybe as late as XP (though I doubt it).
Also-- Between the Lions (there should be clips on YouTube) is particularly appealing to gifted children because of the slightly snarky edge that this production had.
A leap pad, Reader Rabbit, some Between the Lions at random, and a single set of phonetically-controlled readers (like Bob books, but again-- snarkier)...
that was all that DD needed to become a fluent reader.
Last edited by HowlerKarma; 12/03/14 09:02 AM. Reason: to add info about other resources