Yes, I agree with Coius, copy that disk! I can practically guarantee that one day it will suddenly stop reading on any computer.

I did the same thing with a series of original Mac 512k system disks, including MacPaint and MacWrite. I have them all backed up, and I use the copies.

Floppys do fail, frequently. But you'll be fine as long as you back them up.

And to expand on bibilit's question, is your SE the dual floppy kind or the HDD-floppy combo?

-Apostrophe