It is an odd cover, and $19.75 for a single-disc release seems pretty steep, especially given Dudamel's checkered history with Mahler symphonies (though I did hear him do a spectacular M5 with the NYPO in 2009, an experience I'll always treasure). It's possible Amazon made a mistake and it's really a two-disc set, given that his live LAPO M9 at the Barbican Centre went on for 88 minutes.
Did Dudamel really do a CD of Ring highlights? I completely missed that one. A helicopter? Linking the inevitable Walkürenritt to Apocalypse Now? Or maybe they included a string-orchestra arrangement of Stockhausen's Helicopter Quartet as filler. Now that would take a lot of helicopters!
James