It means they can play cds with mp3 songs recorded on them (as opposed to normal audio) , just like your computer can.
Thus a cd audio that can hold only 80 minutes normally can hold maybe 10 albumns + of songs recorded as mp3s
Hands-on: Acer Predator Triton 700 review
D&AD Awards 2017: see the best design, advertising, illustration, animation and VR of the past year
How to lose weight with an Apple Watch
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.