Quiet music
I agree with Maine Sail regarding 192KB mp3. I started off at 128, and have recently switched, and I notice a clear difference, particularly on better recorded music, particularly quiet things such as classical chamber music, early music, some better recorded folk music. If you have the space on you hard drive and ipod (since the higher sample rates result in larger files) go with the higher sample rate. I also agree that buying CDs is the way to go, as that way you can re-encode later if you want to move to a new format. With downloaded music you are stuck with whatever format you downloaded. 78's, 45's, 33's, 8 tracks, reel to reel, cassete, cd, dvd, mp3 - this stuff changes all the time. At least CDs have a high quality digital source that can be converted to whatever is going to come next. (OK the 78's were my dad's, but I've owned everything since, even a few 8 tracks. My sailing specific advice is this: In my car - I prefer up tempo music, while out on the boat, more laid back stuff seems like a better fit. But with 80GB's you can have both on your ipod, so what the heck. Specific recommendation - my family really got into a new Iron and Wine album I got just before a cruise a few years ago - "Our Endless Numbered Days". Its so laid back that its almost catatonic - but on the boat in the evening, it was perfect. Cowboy Junkies "Tinity Session" is another really quiet disk. But hey - everyone's musical tastes are different.