Urquhart,

Thanks for the info and listing the page numbers. As you say, FAT32 has a 4Gb file

limit. I'm told that all USB drives are formatted as FAT32. The 8 drives that I have

are FAT32. I have book marked the manual from your reply...much easier to read.

Thank you, jaybass

OS 13.6.6 iMac (Retina 5K, 27", 2017, 3.4 GHz Intel Core i5, 24 GB RAM, 2400 MHz DDR4. SuperDuper. 1 TB Lacie HD