Claude
Thanks for your kind comments.
1. Do errors like these cause the problems that I have with iPhoto, or are the HD errors caused by some problem that iphoto has developed?
Yes, they cause the problem with iPhoto, because they prevent the script that deletes the originals from running.
2. What can I do to keep this from recurring?
Honestly, I don't know. At any time there are any number of minor glitches on a computer. They just come up from time to time. Personally I check my HD about every six months or so. Sometimes there are minor repairs, sometimes not. I wouldn't panic about it.
After I run disc repair, will the non-deleted photos in the Originals folder be gone,
No they wont. As far as iphoto is concerned those scripts have run and those files are gone.
Here's a way to solve the issue of the unwanted files. Download
iPhoto Library Manager and use the rebuild command it has. This will create a new library and move all the files from the old library to it - and leave behind the ones that iPhoto doesn't know about.
Consult the
iPhoto Library Manager help for more details.
Regards
TD