"The 800 MHz PowerBook G4 does not work properly with the hardware buffer size of 64 when used at 44.1/48 KHz. Additionally, the 128 buffer size also does not work at 88.2/96 KHz. These are the "lowest buffer settings" at each respective sample rate. Any other buffer setting is fine."

Curiously all other powerbooks (including the1st rev 400 TiG4) can use the lowest buffer settings - i.e. lowest latency setting, but the 1 week old 800 DVI TiG4 can't. Apparently this may be a problem with certain windows laptops as well - as is listed in the read me that came with the 002.

You can use the 002 with the 800 MHz Titanium PowerBook at the following hardware buffer settings:

128 samples at 44.1/48 KHz
256 samples at 88.2/96 KHz

It's interesting that the 400 MHz PowerBook was able to use the lowest buffer settings (64 samples at 44.1/48 KHz, and 128 samples at 88.2/96 KHz). There is more 1394 interrupt latency on the 800 MHz version of the PowerBook, and this is why the very lowest buffer settings are not usable.