I found Dr. Melendez's Buzzwords helpful for both my written and oral boards. I loaded all 800+ questions/answer MP3s on my iPod and listened to them in the car, while I jogged, and working on the computer at home. The questions are a nice supplement to other comprehensive review books, and the MP3s are high-yield as Dr. Melendez compiled these questions during his training and as a staff ophthalmologist.
Overall the buzz words mp3 is a decent review, especially if you have a long commute. That said, there are a couple errors in it. Also, the voice couldn't possibley be more mono-tone. It's like they used one of the early 1990's computer generated voices.