Hi. I don't know if this has been previously addressed, but there seems to be a problem with using 5.2, a FireWire Pioneer DVR-109 and Taiyo-Yuden CD-R's. They won't burn faster than 4X, and I've had a couple burn incorrectly, with the audio and index numbers offset. No problems with off-the-shelf TDK CD-R's with this combo. The Taiyos work fine with 5.0a. Is anybody else using this setup successfully?