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- BAD QUALITY of 3,5"-DISKS #
- ------------------------- #
- #
- This is a general article about#
- the quality of 3,5"-disks. #
- To the facts: #
- The US-firm Memory Control Techno-#
- logy Corp. (Memcom) published the#
- results of a test concerning the#
- quality of 3,5"-disks. The main#
- result was: Most of the disks do#
- not reach the ANSI-norms (US-#
- institute of industrial norms,#
- comparable with the german DIN).#
- Memcom (Omaha/Nebraska) produces#
- copy-machines and copies software#
- for big firms. Memcom copies an#
- average of half a million disks#
- per months (250000 of that are#
- 3,5"). #
- Memcom had an increasing error-#
- rate, so they decided to test#
- disks of 25 producers. So they#
- bought 100 disks from each firm.#
- They tested all disks with#
- several mechanical & electronical#
- methods. Memcom tested the#
- stability and the mechanics/#
- mechanism, the ability to label#
- them, of course the data-security,#
- maximum - capacity - all in a#
- permanent "stress" situation of#
- the disks. The tests refered to#
- the last ANSI-norm. #
- The results were horrible: #
- One of hundred disks contained an#
- error. Only disks of IBM, KAO,#
- TDK, Memorex and C.Itoh could#
- stand up to the ANSI-norms. All#
- others of the 25, had an above-#
- average failing-quote. Disks from#
- Verbatim, Sony, Syncom, Polaroid,#
- Maxell and Fuji got the second#
- place in this high-score-list.#
- SKC, Wabash, Xidex and Dysan were#
- the worst of the test. #
- The consequences for Memcon: they#
- will working in the future first#
- and foremost with TDK-disks. #
- In 1987, when Memcom tested 5,25"-#
- disks the results were similar.#
- That time BASF was best. But the#
- producers took it as an inspira-#
- tion and improved the quality of#
- the 5,25" disks. I hope that the#
- same will happen with the 3,5"-#
- disk. #
- #
- Joe of E.B.F. #
- #
- Now to YOU, readers of this mag:#
- Write down your experiences with#
- 3,5" disks and send them us. #
- Here an example of a possible#
- opinion: "The 3,5" disks of firm#
- XYZ are full of errors / 100%#
- error-free / two of a ten-disk-#
- package were damaged...". #
- If there are enough sendings from#
- you, the result will be published!#
- #
- CHESTER/BRS (Thanks to Joe for #
- this idea)#