Isn't Cal out of business? I thought they were. Even if they are I suppose there's still product out there, but warrenty could be an issue.
Cal is out of business and warrenty is a problem for the Delta's, but they were pretty robust.
For the $$$ they are a very good transport and put out a solid "pilot" signal that the DIO needs to stay synched.
The modded DVD players lose synch when the player is opened.
This only applies when using the clock of the DIO, not for upsampling.
The CD-1 is a very good transport, but with the DIO drove me nuts as it could and often did lose synch when you fast forwarded it, skipped back, changed CD's etc..