thanks for all the answers!.. .

Charlieman: i connect the disc using a physical conection, my G4 (10.4.11) have a scsi card. but i get an error "cant Write data to the disk" when i try to copy some file on the disk and " cant unmount the disk" if i try to verify or format it.

and this happen with any of the scsi disk i have.

i downloaded the floppy images of the os 7.5.3 from the apple page to install the system

:b&w: