My music library is roughly 4 GB. Earlier this week I clicked the 'download all' button on the TEDTalks and CocoaCast podcasts. This is a whole load of video content, totalling my total podcast content to about 20 GB. Since, my iPhone won't synchronise. I'm getting an error message indicating that I do not have enough space. The error sais that roughly 24 GB is needed, while only 15 or so is available (16 GB iPhone). I'm getting this message even though I'm not syncing any videos, pictures, or podcasts, JUST my music librarywhich should be 4 GB. (So the only 'sync' checkbox checked in the iPhone config is the first one on the music tab.) Restores didn't help. I've even set up the phone again from scratch, which also didn't help. Any tips would be appreciated as I'm getting a bit frustrated.