This is 1st time I've noticed it AFAIK. Meaning I may have seen it some time recently but because it was just one or 2 files I ignored it. I'm not sure. But those ones above look as though they might be the components of a program which a computer search won't necessarily find. Perhaps that might answer the question. Ah .. umm false alarm .. they are within the contents of a program. I didn't think LW would detect such things on OSX.