It can't be done with dd, there must be something special. (I tried it with bs=10k (good for layered products tapes, but not for at least the supported subset vol. 1.)) Thanks, Dietmar -- weis at netmbx.UUCP | Dietmar Weis DONOP CONSULT GmbH Voice: 030/884 28 54-0 | Uhlandstrasse 179/180 Fax: 030/882 55 29 | D - 1000 Berlin 12