squonk, squeal and punt
I'm mixing an album right now, and the original tracking was done in ProTools (LE). Now I've got a ProTools LE system, but have been using Logic for most of the past year. Digidesign (who make ProTools, and is owned by Avid) is the 800-lb gorilla of the audio world. And like most 800-lb gorillas, there is some good, and a lot of bad.
PT is pretty much the de facto standard, but a "real" TDM system costs about $10K. You can get an LE system (which uses the computer's CPU to do all processing as opposed to a TDM system which has a PCI card with DSP chips to help with the burden) for $500 or so. The problem is, you get what you pay for. I'm running a dual 1gig G4 machine with tons of RAM, and my PT system is having a tough time. Add a few reverbs and compressors into the mix, and it starts gagging (actually, it just stops). And the most annoying thing is this gawd-aweful digital white-pink-fuschia noise that randomly emanates from the system. When you bounce to disk, about every other time you have to cancel becuase one or more channels are in full noise mode. And to top things off, Digi's core audio driver does not allow you to run more than one app at a time that accesses the audio system.
My Logic system with Metric Halo ULN-2 interface otoh, runs like a dream, no noise, no squonk, no squeal. And I can have other apps running, and even other interfaces.
So what to do? Easy...even though it is a pain in the arse, I'm transferring the audio files out of PT and will mix the album in Logic.