SanDisk Open Box 1GB Cruzer Mini High-Speed USB 2.0 portable flash drive (SDCZ21024A10OB) Hard Drive "save new file linux edited" Questions

...save new files. my Usb is a Sandisk 1gb micro cruzer, and i've tried it on other computers... no luck! When i try to change, edit or save new files it says "I/o deivce error..... try to format it! My ...