I have a 16G 2G Touch, not JB. 1.41G Audio, 4.83video, some photos and Apps. I also have a bunch (about 50) of uploaded User Manual PDFs and the same in hidden videos - via GoodReader and Folders - that are not apparently visible to Apple's software. What I don't understand is iTunes reports 6.31G Free sometimes, or some number similar with an orange Other bar (I keep changing the contents of the iPod, so I don't know if the Free with no Other is equal to Free plus Other when the orange bar shows.) Everything works fine, but I'm concerned about how much actual space is left on the drive, and what could happen if I overflow it. (Yes I searched, did not find anything helpful...) Why does the bar appear and disappear, and can I trust the Free display, or must I manually calculate the available from Free minus my uploads? Thanks.