Yes those can be difficult when ripping to server drives. But man are they a cinch to copy disc to disc! If I were in charge I would insist on true DVD-A simply because it has much stronger copy protections offered.If Oppo shows it as 96k, then it's 24x96 DTS. That's what I needed to know. Thanks!
And those can be a pain to rip if you wanna put it on a file server. Most methods will fail at extracting the extended channels and only rip the core DTS (48khz, not 96). It's my understanding that Audiomuxer may be capable of ripping a 24x96 DTS with it's core and extended tracks.