the 001 DOES WORK in Tiger, up to 6.9.2cs on my mac. i use the standalone version. my mac is dual boot and has the latest firmware. haven't updated PT since 5.1. the 001 was designed to work with the AGP Graphics card models, and might be the reason people have trouble with other models. i don't think quicktime is a factor as i'm using the next to latest update in osx. in os9, i don't know what version qt is.the 001 doesn't happen with the recent CAD 7.0.0., thou. this could be a bug as i've seen posts where it doesn't work with the 002.
i have other converters which sound "better" than the 001, and i generally only monitor thru it when i want to check a mix for commercial release. it's sort of a "worst case scenario" box for me now. i maintain it by using the "digitest app" in os9.
G4 450DP Mac OS X (10.4.5) digidesign, motu, apogee