Many, many thanks + a bit more info
Here is a link to the Leopard version of AtvCloner
https://dl.dropbox.com/u/29510955/AtvCloner_Leopard.zip[/url]
That should work on leopard.
..... and it certainly does! Thank you so much man, your programming skills have enabled me to rescue my ATV. The HDD had somehow got corrupted, I think because it locked up with AtvFlash running. Either that or the HDD is going to fail ......soon!
I had previously tried to clone a known good AppleTV disk with dd in Terminal but it would always crash at about 3+Gb. No idea why but possibly bad hardware(?)
Just to encourage anyone who might be having problems with ATVCloner: I did get a couple of crashes with ATVCloner when trying to write the disk partitions. However, I found if I closed ATVCloner after copying the source disk and then reopening it, the disk partitions would be created without any problem. Hope this helps someone.