You can't browse, but if you want to hear the next song on that cd, just push the up button on the touchscreen. That's as close as you're gonna get.
The unit is great, but it has it's drawbacks. Even though you are only supposed to have 99 songs in a playlist, I've got 5000+ on one, so I don't think that it has a limit. I do get some random errors because of it tho. It gets confused and will sometimes list the wrong song or overwrite, but it's well worth it