18 May
2021
18 May
'21
8:37 a.m.
On May 18, 2021, at 3:57 AM, Antonio Carlini via
cctalk <cctalk at classiccmp.org> wrote:
I think Zane was reading the files from an ISO image I made of a 1989 CONOLD CDROM.
Correct.
That CDROM had previously been used as a toboggan by
one or more members the DEC Reading Engineering Team and so was somewhat heavily scuffed
when I got it.
I eventually recovered it through a process of manual polishing involving sandpaper and
elbow grease. I think ddrescue reported 2048 bad bytes in the end (one sector).
It is entirely possible that one or more of the files is corrupt, although the text files
(the BOOKSHEFLF files, for example) seem OK.
The filesystem structures do seem OK, so maybe I was lucky.
I?m not really concerned with corruption of the BOOK files, I think my problem is with the
tool I?m trying to read them with. Since Malte Dehling reports being able to read them
with DECW$BOOKREADER, I think they?re okay.
Zane