I have a 30gb ipod video white i dont know if its a 5gen or a 5.5gen because on my ipods box there is a guy singing not the pirates of the carabien. I want to know what is Ipod linux and Rockbox? are they like ipod firmware's? and can any of them run on my ipod and is there a risk of wrecking my ipod? and what are there capabilitys over the ipods firmware and what one is better ipod linux or rockbox? and is there any other firmwares like this? Thanks