Article 48940 of comp.sys.dec: FYI, here's a listing of the appropriate numbers. RD52 RD53 RD54 xbnsiz: 54 54 54 dbnsiz: 82 82 201 lbnsiz: 60512 416730 1137730 rbnsiz: 168 280 609 surpun: 8 8 15 cylpun: 512 1024 1225 wrtprc: 256 256 256 rctsiz: 4 5 7 rctnbr: 8 8 8 secitl: 1 1 1 stssk: 2 2 2 ctcskw: 2 8 8 mediaia: 627327028 627327029 627327030 RD52 = Quantum Q540 RD53 = Micropolis 1325 RD54 = Maxtor XT2190 RD31 = Seagate ST225 RD32 = Seagate ST251 RD33= Miniscribe 3085. My thanks to Steven Underwood for providing this data. -RP =========================================================== Randy Palmer | The opinions expressed are mine randy_palmer@avid.com | and do not reflect positions of std. disclaimer --> | my employer, Avid Technology. ===========================================================