iTunes "installs" music in the folders F00 - F13. You can develop an app that will do the same thing but without computer. This will be more easier than always connecting the idevice with the pc. I'm not refering to piratical songs that some are downloading. I just want to make the life of the ones that don't have the time to be occupied with the computer easier. Although if you can't or don't want to create such an app, can you just tell me how does iTunes rename the songs to names like "ACDF" for example, and where is the file that tells the iPod where each song is? Thanks for answering.