So I just got an hd radio for my phone today. I noticed something that surprised me playing with it today, KPLZ has RDS. Well, that itself was not a surprise, what was was the song data. I thought that KPLZ just said the name of the program, such as Kent and Allan in the morning. So, why am I not able to tag songs off of them with my IPod? The only stations I can tag off of are the Clear Channel and CBS stations, although a lot of times CBS stations didn't work on the IPod. What is different about the RDS of KPLZ vs. these stations? I also noticed the other stations had RDS, but I assumed this was in the HD stream only, though I could be wrong. If it was in the analog as well, why couldn't I use it on the IPod?