Can the 2003 model of Honda CR-V play mp3 files?

Try this simple test: 1. Obtain disc containing mp3 files. 2. Insert disc into CD player of your CR-V. 3. Does it play the files? If so, the answer to this question is "yes". Alternatively, look up the car on Honda's website and find out a bit more about the in-car entertainment options available there. Or you could even phone up your local Honda dealer and ask them! Remember "speaking to people"? That's what we used to do before the internet.