Bernhard,
I don’t think it in necessary to copy all the RAW-files to another location.
Actually, it has to be done in one of the two ways that I described. Any other method that would allow access to files that are in use by the Save process would invite disaster.
It would be enough to write an error-note for every error that happens while processing the files. When one file is deleted while PM5 works on extracting the JPG's a simple note is enough.
What is this deleting that you're talking about?
When one file isn’t readable or something else happens - one simple error-note is enough.
After that note PM5 should try to go on processing the next file of the process-file-list
The Notes can be written to a ErrorFile that is located in the ExportDirectory where all the JPG-Files are going to…
that is how I would program that it if I could edit PM5’s source ...
This also is a problem. If you were to use a sequence number in your naming of your destination files, they would all get out of sync and you would not only have to get these 'errored' files reprocessed, you would also have to do another separate rename after the save completes.
PM cannot just proceed with the other files. Your destination disk may be full and continuing to process files would be fruitless. I can change the Save As to report the name of the file that that got the error, and additionally, remove the selection on the files that completed, then you could correct the problem and open Save As again and continue where you left off.
If Save As were to operate in the background, what other work in Photo Mechanic would you try to do?
-Kirk