Disk Protect Problem

I have a Sony Mavicap MVC-FDR1. Suddenly, I cannot save to new floppy disks. The "Disk Protect" sign appears on the screen whenever I try to save a photo.

If I put in a disk that already has photos on it, I can save additonal photos on that disk. But, you cannot erase an incorrect picture.

I have tried to format the disk....will not let me format. I have checked disk type...they are exactly the same as old disks. I have checked...the lock tab is in the unlocked position.

What is going on? Is there a setting that can the accessed to remove this protection?

Can anyone help??

Thanks,

RVerrette