Its not just iPod hard drive space, its also the RAM buffer otherwise music can start skkkiippppiinnnggggg- but I think most pop music would fit. That said, I bet most people wouldnt hear a difference for most pop music...

best regards,
Jerry

Best regards,
Jerry
Main System: 861v6, DSP8000s in corners, DSP7000s Center and Sides, 1-9 humans.