corsaro%v5130b.DECnet@NRL-ACOUSTICS.ARPA.UUCP (05/26/87)
Regarding disks, this table summarizes my (and some co-workers) experiance over the past two years, as best I recollect: type number Format errors data dropout used (SS/DS) (within 6 mo.) ------------------------------------------------------ Precision (DS) 50 10/- (20%) 5 (10%) 3M (SS) 100 10/- (10%) 8 (8%) Sony (SS) 200 2/0 ( 1%) 0 Sony (DS) 30 -/0 0 Verbatim (DS) 50 -/0 0 TDK (DS) 20 -/0 0 Note that the first three listed were purchased under bulk Govt. contract, while the others were commercial. Incidently, this data does not include (but is consistant with) data previously reported by Bob Menton. (We get our disks from the same source). Disclamer: this is a small data set since all disks from the same manufactorer probably came from the same production batch, and may therefore not be fully representive. ------