Not just for helicopter pilots, Richard Wagner's 4-opera Ring Cycle weaves an epic, multi-generational saga of gods, heroes and monsters. For a limited time, the full 16-hour recording across 14 CDs is half price - $100, plus $5 for delivery. Works out to $7.50 per CD, or $6.56 per hour.
For those who don't have the stamina for the whole performance, the individual operas (2-4 CDs each) and the highlights (2 CDs) are also reduced. For those who disdain physical media, the highlights are available as a download for $15 (though not reduced).
Each opera is provided on hybrid SACD, yielding CD-quality sound in regular players or higher quality in SACD players (and some Blu-Ray players). They come with "handsome hardbound volume with colour production photos, essays on the opera and the history of the Ring in Adelaide together with a full libretto." They were recorded in 2004 by the State Opera of South Australia, conducted by Asher Fisch.
My first deal, so please be gentle.