Hi All: Well, when I tried asking about this on the BookPort list, my message bounced, as I guess that list is gone. So considering how similar these devices ar, I will explain here what happened. Yesterday I recorded an ABC-News stream for several hours, which I wanted to edit. So took this card over to my Linux machine, coppied the file to my hard-drive-and-edited out commercial breaks. After unmounting the card-and-inserting it back in BPDT, it said "no content on sd card" Likewise looking at it again in Linux, won't even load. Not sure, but I think the file system in BookPort is fat32, while my Linux might be an ext4. While I have certainly had successes, I have had 2 or 3 of these type possible disasters. Thanks in advance for any guidance Chime