| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 747.1 | You can't use 2HD disks on the ST | OLDTMR::WALLACE | | Wed Jan 24 1990 14:41 | 9 |
| Nope.
The ST will actualy format 2HD disks (at least it claims it does) but only at
the old 720kb size. The BIG problem is that once you start using the disks
(copying files to and from) they quickly become corrupted (at least the one I
tried). I assume they must require a stronger magnetic flux to
properly/permanently write to them.
Ray
|
| 747.2 | Dont use them! | UKCSSE::KEANE | | Fri Jan 26 1990 09:30 | 14 |
|
Hi,
I would concur with Ray, using the "Quad "density 1.2 MB IBMstyle high
density disks is DANGEROUS (Datawise), I also lost data trying to use
these disks. I believe the oxide formulation is so different, grain
size, permittivity, etc, that the normal drives in the ST range, cannot
cope with the disks reliably.
Why use them, (unless they fell into your hand), they are much more
expensive to buy !
Cheers
Pat K.
|
| 747.3 | ST can use HD-Disks | HAM::LITSCH | Jens Schmidt | Tue Jan 30 1990 10:27 | 16 |
| 747.4 | DS disks used as HD | SVCRUS::ADAMS | beam me up | Fri Feb 09 1990 18:38 | 10 |
| Recently I went to a computer show in Boxboro where one of the
attractions was a device that "cut" a hole in a standard 3 1/2"
floppy so that it could be used as a HD floppy. Some of the people
that I talked to there had one and used it all the time. They did
not seem to notice any degradation of quality.
I usually but my floppies in bulk and the last order that I received
had 50 of the HD floppies at the same price. I have been using them
for about 3 weeks so far and have not had any problems. Mabey there
will be trouble with long term storage. Anyway I will give them
a rigorous workout this weekend and see if they fail.
|
| 747.5 | win some lose some! | UKCSSE::KEANE | | Mon Feb 12 1990 09:41 | 11 |
|
Hi,
I think its very much of a case of mix and match. Some floppies give
high output, others low, combined witht the quality of the read amps
and data separators in your floppy drive, may or may not work!
I know my Citizen Floppy drive dies on all the HD disks I have fed it!
Cheers
Pat K.
|
| 747.6 | How do you get 2 pints in a pint pot, you dont. | JOCKEY::CHANDLERC | but fools are so ingenious | Tue Feb 13 1990 13:57 | 24 |
|
HD media has a higher coercivity than "normal" media.
This media requires the higher write current used in the HD drives.
The problem is that the low density drive does not have this high
write current so cannot record on the HD media.
The even bigger problem is that the HD drive can record on the low
density media.
The problem is that it records with too high a write current, and
the media being low coercivity records whacking great magnets.....
and being low coercivity the magnets eventualy erase one another,
or attract one another, either way this destroys your data, it just
takes a little time......
so be warned dont use "normal" media for that valuable backup in
your HD drive.
Best of luck Chris Chandler.
|
| 747.7 | So far so good | SVCRUS::ADAMS | beam me up | Wed Apr 18 1990 20:15 | 8 |
| I have been using the HD disks that I mentioned last Feb as scratch
disks for transferring files and temporary storage quite a bit.
I have not had any problems yet. I had put a few things on them
last Feb and tried them this week and so far they still read.
so for short term stuff they worked fine for me as for long term
mabey it will take a little longer to tell.
BA
|