Newton 2.0 OS: Won‘t Write to 1.X Formatted PC Cards

When I insert a Newton PC memory card into my Apple MessagePad 120 with the Newton 2.0 OS, a message appears asking if I want to mount the card as read only, or convert the card. If I convert the card can I still use it in other Newton PDA devices that have the Newton 1.x OS installed?
No, if you choose to convert a PC card to the Newton 2.0 OS, then you will not be able to read it on a Newton PDA using 1.x of the Newton OS without reformatting the PC card using 1.x of the Newton OS.

If you need to use data on a MessagePad with 2.0 installed, you should select Read Only when the message appears. Selecting Read Only sets a soft write protect on the card, which prevents you from writing to the PC card.
Published Date: Feb 19, 2012