Incorrect info on the sleeve, rippers beware!
Quad Mix (which DVDAE sees as 5.1 with a silent center channel) is 24/48. 5.1 Mix is 24/96.
My recollection is that because of some licensing reason, the newer versions of DVDAE report TrueHD resolutions above 24/48 as 24/48 even when it's actually 24/96 or higher. It will export them at the correct bitrate and resolution provided you've set them correctly on the menu screen that has the dropdowns that allow you to pick. It seems to sometimes revert to 'channels: stereo' , 'Bits per sample: 16' and 'Sample rate: 48000' when it should be channels: all 6 channels, bits per sample: 24 and sample rate: same as input. You can check afterward what the actual sample rate and bit depth of your rip is by dumping your output files into foobar or something and looking at the properties.