Just got the Z5U with the Compact Flash recorder. Problem is, the first Transcend 32 GB CF I tried gave me an error of A:12:01 Cache Overflow-transfer rate delay. I thought the medium might be afoul so I returned it and replaced with a 16 GB Transcend (both were recommended by my dealer). I put it in the MRC1 formatted it and it looked like I was recording. I switched to PB mode to check. Now I've got an A:19:91 Compact Flash recognition error. It seems that some of you are doing okay with the Transcend product. Am I right to start thinking it's time to return the CF recorder? Or am I doing something very wrong out of the box?