Tool's 2001 album Lateralus. Available here on Double LP and CD.
Lateralus is tighter, clearer, crisper, and all around a notch above their admirable previous releases. Aenima was marred by muddy production and a certain predictability. Undertow had a cleaner sound but wasn't as confident or adventurous. With Lateralus, Tool have raised an already lofty bar still higher by coming up with a collection that kicks major ass.
LPx2 - Double LP.
CD - Standard CD.