Just curious, but what does the backup actually backup when you request iTunes to do so. I don't want to lose my contacts or calendar especially. I know there is a backup file in my windows folders. I copied and pasted it to a safe location that will never be formated. Is this what I should be doing in case of an emergency where the original files get wiped out due to a format of my computer or a restore of my iPod? Also, I have a mobileme account. Love it...but how do I prevent my contacts and calendars on mobileme from being wiped out if I associate a new iPhone or a restored iPod (both without contact or calendar information) to my mobile me account, since they sync with one another and what one does (eg: iPod for the time being), the other (mobileme) does.