You mean CF card? I upgraded my iPod classic by pulling out the old 1GB hard drive and replacing it with a 64GB CF card. The pinout is the same, and it works flawlessly.
I felt like a real hacker when I did it!
I felt like a real hacker when I did it!
You are also correct but I think I recall 512GB CF being way more expensive than SD which I paid $32 for Sony 2 years ago. Different iPod models had different adapters too. I think the mini was a CF card or similar