I only have a measly 20 GB iPod, but it holds about 3700 songs @ 192kHz AAC/MP3, and for listening to earbuds is fine for me.
I also use mine a lot on planes, and I find the Sony MDR-NC11 active noise canceling earbuds to be great for planes! They cut out the drone of the engines, leaving a much quieter background, so I can listen to music at much lower volumes saving my batteries for the return trip, and these are small enough to fit into the front pocket of my iPods padded case.
I also use mine a lot on planes, and I find the Sony MDR-NC11 active noise canceling earbuds to be great for planes! They cut out the drone of the engines, leaving a much quieter background, so I can listen to music at much lower volumes saving my batteries for the return trip, and these are small enough to fit into the front pocket of my iPods padded case.