I just wanted to add a couple things to my CF-card report on the H300. The previously-mentioned CF card did work for a while but turned out to have problems. So I played around with 3 different CF cards and finally gave up. (I did get an old AData Speedy 2Gig CF card to hold me over, though...

fleasbaby: Thank you! I followed your directions, with success as well. However, in my case, I did it with the iFlash-CF Compact Flash adapter instead, hoping that CF would be a little bit more dependable over the years. I still, like you, had to also use the 4th Gen iPod to iFlash Converter...