I started buying Hiromi recordings back in 2006 starting with the "Brain" sessions. Telarc was her label for a long time and the CD's Brain, Spiral, Time Control, and Beyond Standard were all released in a hybrid SACD format. At that time it was the only way they were released and usually for 15-20 dollars. I like the sessions with "Sonicbloom" backing her as it added the electric guitar virtuoso David "Fuze" Fiuczynski. All of her trio sessions are also awesome usually with Anthony Jackson on electric bass and Simon Phillips on the drum kit. No introduction is needed for those two!!!
My personal favorite session "Beyond Standard" with "Sonicbloom"
I saw them for that album tour at the Blue Note NYC and they tore it up down there. Here is a snippet from the Amazon blurb:
Hiromi's supergroup, Sonicbloom, has shattered the formula of making records written solely by the celebrated pianist/composer. Their latest outing, "Beyond Standard," finds Tony Grey (bass), Martin Valihora (drums), and Dave "Fuze" Fiuczynski (guitar and otherworldly sounds) helping Hiromi craft unique versions of familiar tunes such as Gershwin's "I Got Rhythm," Rogers & Hammerstein's "My Favorite Things" and even Jeff Beck's "Led Boots."
The group has been recognized for its energetic virtuosity by music industry and mainstream publications alike: Downbeat, JazzTimes, Keyboard, and The New York Times. Playing festivals such as Glastonbury, Fuji Rock, and Playboy Jazz proves that Hiromi's unique fusion nuevo has been accepted in the world of jazz as well as rock. "Beyond Standard" is a showcase for Hiromi and her band's abilities, with each player getting plenty of room to shine.
I don't have regular cd versions of her first half dozen recording sessions to compare with my SACD version on an A-B basis so I could not tell you if the sound quality is better.