Looking for VAXSET Software Engineering Tools for VMS 4.x

On 12/05/2021 13:58, Malte Dehling wrote: Thanks. Nice work, particularly grouping them together, pulling out the JPEGs and seemingly mounting them to suck out the CD_CONTENTS.DAT! As a reward for your hard work here are a few more for you :-) I've now uploaded ag-nc67a-re.tar.xz, ag-mn36d-re.tar.xz and ag-pcy4c-xe.tar.xz. These are: AG-NC67A-RE - VMS Online Documentation Library??????? 1989-03 Disc 1 of 1 AG-MN36D-RE - VMS Consolidated Software Distribution? 1989-05 Disc 1 of 1 AG-PCY4C-XE - InfoServer V2.0 Software Base Level 10? 1991-11 Disc 1 of 1

AG-MN36D-RE in particular took over 5 days to rescue. In the end it managed 99.41% and couldn't get any more data off the CDROM when run with -R. So, despite the internet saying use 2000 and 3000 grit sandpaper, I went against all the advice and recklessly tried a seven minute does of 1500 frit sandpaper, followed by the usual vigorous polishing. I've included a "before" image of the rear (non-label) side of the CDROM and a triangular "blemish" is clearly visible near the centre and extending out into the data region. 2000 grit didn't touch it, I could still feel it afterwards with my fingernail. 1500 grit wiped it away completely and ddrescue got to work immediately and took just 10 minutes or so to recover the missing data (apart from 4096 bytes).