I am doing a bunch or live recording this summer and am multi-tracking to an HD24. For backup & reference I am also recording CDs on a TDK DA-5900 CD recorder. For this I am sub mixing L/R FOH with 3+ AUD mics onto CD. I was trying to take my resulting 2 mix out of a 16-channel Mackie VLZ into my DigiMax FS in hopes that the optical out into the TDK would help my AD conversion rather than use the TDK analog ins. questions: 1. Has anyone had success with this setup and is the DigiMax conversion worth it. 2. For some reason, the TDK recorder shows a "D-Unlock" error when selecting optical as the input mode not allowing me to get signal in. Thoughts anyone? Thanks in advance!!