Hello,

> I have the original disks of MacOS, but some disks have problems. 
Where 
> can I find images of disks with MacOS?
Have a look at ftp.apple.com, they offer System 6.0.5, 7.0.1 and 7.5.3 
for download. 7.5.3 comes as .smi so you may want the "Network Access 
Disk" (essentially a cut-down 7.5.3 on a single disk, is seems tobe 
available or just a few languages, if you don't find it try north 
american ) too. 

have fun
Michael