AAUGH! Vulcan 20 dying??

[dalloff@gcfn.org (Dave Althoff Jr)]

I've got a Vulcan-20 hard drive salvaged from a IIgs, and a Vulcan
controller card mounted in my enhanced //e.

Some time ago, I stupidly decided to use that drive rather than the drive
on my IIgs for archiving some text files.  Now I want to convert those
files to HTML and put them on my web page.  It seems that something very
strange has happened to some of the files.

Somehow, at a random interval, certain bytes have been advanced by five
ASCII codes.  For example, where I would expect to read:

This is the build-up to the ride's longest drop, I think it is on the
order of 170' into a dark tunnel. 

I get instead:

Phms$iw the fumld-up$to the vide's$longewt$dvop, I tlink it ms$on the 
ordev of 170' mnto a daro tunnel. 

And why did a "T" turn into a "P" instead of a "Y"?  So far, that's the
only one where the error counted backwards.  And the error seems to be
popping up at a random interval!

So does this mean my drive is dying?  Or should I try pulling off anything
that isn't corrupted, reformatting the drive, and trying again?

If the drive is dying, does anybody have any advice as to what kind of
drive I should look for to use with the Vulcan card?  The present drive is
a Western Digital WD-93028-AD, and I notice it is dated 06-01-1990.  I
guess 11 years in two computers under two owners is a full and happy life
for a disk drive.....

--Dave Althoff, ][.
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