Amazon.comIt might be news to some, but there's no one more important in the history of country music than Hank Williams Sr.. Happily, Williams's material is available today in many configurations, ranging from greatest-hits sets of 20 or 40 songs to a complete set of his singles, and even a complete set of all his recordings. This one, like many of its 20th Century Masters series brethren, is just too damn short--a paltry 12 songs--and is slightly skewed in favor of his good-time honky-tonk material, shying away from the songs that best show off his dark, even doomed genius. All of these songs are unimpeachable classics, so for the budget-minded, it's still a good set. But once you get hooked on Williams, you'll want more than is available here. --Daniel Durchholz