OK, that's helpful...although I didn't know you could put "folders" onto an MP3 CD and the player would be able to go inside the folder and play the tracks within.
I just noticed recently that I burned a CD of .WAV tracks and it was 211 megs...
Then, I converted those same tracks to MP3 and it was only 28 megs.
This means, I could put the same tracks on that same CD 7 times had I used MP3 format...and it made me change my mind about MP3 because it's much more compact, making it much more efficient.
In the example of the wave files above, there were 10 tracks in that 211 megs...so in theory, I should be able to put 70 tracks on that same CD if I use MP3.
Would that work on today's CD/MP3 car decks?
Seems like it would be more simple for me to just put the tracks on without using any folders.