iPod 3G CF card size limits

[amsm]

The HDD in my trusty 3G iPod died yesterday.   

Since I've found Rockbox on there to be a better proposition than on the 5G, I have decided to do the replacement thing with the CF card while I use the 5G as an emergency for my road trip this week.  Just wondering if there are any limits on the size of card that the device will recognise and are there any specific brands recommended, or that I should avoid ?

[fennectech]

I sugest going for this product instaid  It is an iflash quad.

https://www.iflash.xyz/store/iflash-quad/

The biggest disk you can use is the maximum for a fat32 filesystem