Well, it appears this problem is something in DDR is conflicting with our Channel Extension equipment. Making CMS files out of the disk images with CMSDDR and using tape dump on those is working at the moment.
Marcy "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation."