I actually tried it again today and discovered in UC, either on my computer, connected by firewire, or with my iPad that once I clicked Virtual sound check in Capture, opened a new file and selected the file I wanted to play that all 32 channels on the mixer changed from Analog to Firewire automatically. If I turned off the Virtual sound check all 32 channels reverted back to Analog input automatically. I was able to play back the recorded session, change effects, remix etc. I did not have my CS18AI connected at the time so I am not sure if I could have controlled the setting from there but I could through UC on both my computer and my iPad. I appreciated the tip that helped my figure this out and I think the other day I was trying to start the playback on the CS18 and I am not sure why it didn't work. I will be gone on vaca for the next 10 days so I will try that when I get home. Dan