Ciao Andrea! 1. Any generic external usb floppy will do. You need the floppy for authorizing SD 2.0. 2. As far as I can remember from V3.0 on you only need the CD-ROM for authorizing (I may be wrong) - SD ask you from time to time to reinsert the original CD-ROM. 3. Download the free version of "stuffit expander" it will unpack .sit-files under OS9. 4. Don't you dare to buy a notebook which runs windows now you've got a mac! ;-) 5. What files "213 to 305" ??? Greats groba