Downloading Frenzy!

i have downloaded like half the songs that are in my ipod onto a flash drive. Your all probably going "WHY? you have an ipod. Why do u need to do that?" well heres the reason. I don't want to download everything again later so im making a copy of ALL 900 of my songs onto a flash drive so when my ipod suddenly want to die on me i can take the flash drive and plug it in and transfer it to a new ipod. I suggest you do this just in case. I should have started this when i got my ipod not when i have close to a thousands song.....