Music And Travel

What music format do you take when you roadtrip and why? (CD, mp3 etc)
* I normally listen to CD when traveling with my family. I made sure I bring all my favorite CD's especially if it's a long trip.

Do you ever make special mixes or playlists just for your trip?
* I did. But it was long time ago and it was from Jaci Velasquez CD. Dear hubby sent me Jaci Velasquez CD's when we were still engaged 7 years ago :)