Unless you used the old SUPERDISK drive and it was made on the 1.44MB disk in dos compatible mode you need to go find a Mac with the diskette drive to scrap it off.
Not that I'm unwilling to tell you all the technical reasons why a PC drive can't read it, suffice it to say it can't.
More at http://lowendmac.com/tech/floppies.html
I have an old MAC 3.5-inch disk with work on it that I'm trying to access. This disk is from high school, and it was formatted in the early 90s. I only have access to non-MAC computers, so I'm wondering how I can get this disk read. The disk/work could be corrupted, so that leads me to another possible problem. The Apple store near me only had one external floppy drive, and when the disk couldn't be read, the "genius bar bartender" wasn't sure if it was the drive or the disk, so I'm still not sure in what shape the disk is. Also, I have no idea what word processing program was used when this work was orginally created. Any suggestions would be fantastic!