The information in  this article applies to:

• pyro 1.x
• pyro 2003
• pyro 2004
• Media Works
• Pyro Plus
• pyro 5

Red book is the standard for audio CDs that will play in any audio CD player. Regardless of whether you are burning WAV files, MP3s, or WMAs, pyro will always burn a Red Book audio CD. Standard Audio CD's can only hold 70 to 80 minutes of music, no matter how big or small the original files are.

If you want to burn more music than that, you'll need to create an MP3 Data CD. This is just a normal Data CD with nothing but MP3 files. However, you must have a player capable of reading and playing MP3 Data CD's.