E) You have to make backups before they completely degrade.
Most of that stuff is stuff that no-one is selling anymore so copyright is moot as the holder is not still copying.
Where the copyright holder is still in existance and the product is available for sale then there might be an issue. Anything you like enough to buy that you CAN buy, maybe you should get a copy. Anything that you don't use, leave it be, unused. You aren't stealing something from anybody if you are currently not using something that you wouldn't pay for to not use. (Think I got the wrong number of negatives in there).
If the police decide to berak in to your house and take away your floppies, they will stick them in a PC (if they have one with a floppy drive) and find nothing readable anyway. If they are desperate, they may take several years with a farm of macs to decode your floppies (a la the lost Warhol animation).
If you just do nothing with the floppies the data will eventually go away (in some small number of years). Heck, it might already be gone.
