Replay Radio 9 is a separate program from Replay Music. So, it would be used in conjunction with Replay Music. Replay Radio is designed specifically as a radio show / station scheduler. Replay Radio uses 2 different types of recording technologies. For those station streams that can be direct downloaded. Replay Radio will download the file data of the station in real time. This is a background process – no audio will be heard while the recording is happening. Replay Radio can also audio record any audio you can hear. This is similar to Replay Music. But the new audio recording technology is done before the sound card so that no other ancillary noises are picked up. This new audio record technology works on any computer. Both Replay Radio and Replay Music can be used independently.