Versatile Multilayer Disc Versatile Multilayer Disc Versatile Multilayer Disc (VMD or HD VMD) is a high-capacity red laser optical disc technology designed by "New Medium Enterprises, Inc.". VMD was intended to compete with the blue laser Blu-ray Disc format and had an initial capacity of up to 30GB per side. At CeBIT in March 2006, NME demonstrated a prototype VMD player and announced that they were expecting to launch the format in the third quarter of 2006. At the Custom Electronic Design & Installation Association trade show in September 2007, NME exhibited two players set for release in October 2007. There were 20
Compressed audio optical disc Compressed audio optical disc A compressed audio optical disc, MP3 CD, or MP3 CD-ROM or MP3 DVD is an optical disc (usually a CD-R, CD-RW, DVD-R or DVD-RW) that contains digital audio in the MP3 file format. Discs are written in the "Yellow Book" standard data format (used for CD-ROMs and DVD-ROMs), as opposed to the Red Book standard audio format (used for CD-DA audio CDs). Compressed audio files are supported by many modern CD players as well as DVD players. Disc players are capable of playing compressed formats, such as MP3, the most commonly used format, as well as