I made a music cd, but it will only play on my computer.

My customer Benny had an issue regarding music burned to a CD-R. Benny calls me and goes on about his music CD only being able to play on his computer. I asked him what format he burned them as. His reply was, I don't Know. I already knew what his issue was. He burned the files as MP3's which will not play on a standard CD Player. I had Benny insert the disc into his media drive and explored its contents. I was right he burned them as MP3's. The only burning software he had was Windows Media Player and the built in "Burn Files To Disc" option. So, I remotely logged into Benny's machine and ran him through the process of burning the disc in the proper CDA format. Was he happy with the end results, of course he was.