Mp3 (MPEG layer-3) is a patent protected data compression technology developed and owned by Fraunhofer Gesellschaft based in Munich, Germany.

Mp3 compression reduces the size of a standard AIFF format music file, used on an ordinary audio cd, to one tenth of it's original size. That's how we are able to put 10 hours of music onto a single RadioROM mp3/CD-ROM.

Mp3 compression technology actually allows you to use different rates of compression.

RadioROM uses 128kbps because it allows us to put 100+ tracks,
10-hours or more music, onto a single disk - with sufficient space left for our software application, database and image content.

Using the same data rate as standard CDs, 256 kbps DOES NOT give twice the quality but would mean that only 5 hours of music would fit on a disc.

In perceptual terms, listening to RadioROM is the same as listening to FM radio audio quality.

MPEG stands for Moving Picture Experts Group. MPEG compression technology was developed to fit high-quality sound on to movie DVDs.
Mp3 at 128kbps is now a music industry standard.