Short answer: Yes, it needs to be Extended Format... which has a pre-req of SMS-Managed.
As Ted mentioned in one of the replies, a non-EF dataset does indeed have a limit of 65k tracks. Best regards, John Baker ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
