I have an 8GB 2G iPhone and about 6GB of music. Right now I have my music encoded in 128 bit Mp3 format, but am getting fairly close to reaching my limit. Is there another format that the iPhone supports, but offers a smaller file size? I am not an audiophile. The sound quality isn't of paramount importance. I actually think 64 bit WMA sounds good enough, but that's obviously a no go on the iPhone. Anyone have a suggestion? Thanks for any help.