So you might believe, until you read the minutae about RX50 formatting support in the RT-11 5.7 release notes :-). I most certainly have formatted RX50's under RT-11 5.7... -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927