Is there a maximum number of raw files that can be converted to DNG in one operation in Lightroom 5.
I can convert multiple folders with about 100 files OK, but if I try to convert 3000+ files over night Lightroom stalls.
Also when Lightroom is set to delete the raw file after conversion should it also delete the sidecar file.
I don't know of a limit, I suspect the hardware, OS, RAM and other factors play a role. Yes, the sidecar files will eventually be deleted in my experience but it's not instantaneous by a long shot.