Hi,

i'm about to upgrade the broken drive in my iPod with a 120GB HDD from Toshiba.Good to hear that it will work.

I've read a lot about upgrading an i think you should try to clean the drive before connecting to your iPod.That means to remove any filesystem on the HDD. There are special cleaning/removing tools for HDDs such as Zerofill a.s.o..

That the HDD in your iPod isn't recognized by the PC or MAC doesn't mean anything, because the reason could be a iPod incompatible filesystem on the HDD.

Buy an adapter for the HDD and connect it directly via IDE-Connector/USB to your Computer.

If the HDD isn't recognized it's broken/damaged.

If the HDD is recognized but not accessible there is a foreign filesystem s.a. ext3 or ReiserFS on the HDD.You can remove that with a removal tool mentioned above.

I hope that i could help you.