Thank's for your answer,
I have check the size of zip and unzip file, it's correct. I have follow your recommendation(Alvin text, before) and i don't know why it's not working. What are the size of the final system file that enable the system disk to boot my S-770? When i try to write with fdisk it's seem that the file is about 1,47 mg (s770225.out). If you have other suggestion, i appreciate them very much because my S-770 is not working at all without this system disk!

Thank's again
R.Doyon



I think you have a damaged or incorrect file...
Check the sizes:
S770225.zip (zipped file)172.213 bytes
S770225.out (unzipped)737.280 bytes
This file fits on a double density, 720 Kb floppy disk.
Try downloading again, or if you still have problems, I can email the OS to you.

Mgomes.[/B][/QUOTE]