Universal Media Disc was created in 2004.
Mixed Media Group was created in 1991.
hard disc drive
disc
mma
mma
blu-ray disc
A UMD is a Universal Media Disc
disc
CD and DVD disks are used by optical disc drives.
Geri Greenman has written: 'Painting with mixed media' -- subject(s): Technique, Mixed media painting
Taiyoyuden, Yuden, SonyD04, and Fujifilm are some of the best media disc on the market. Keep in mind that media disc quality is not determined by brand but by media ID of where the disc was made. This is important because many of the major brands outsource the making of their disc to other companies who usually have shops set up overseas. Anything made in Hong Kong and Taiwan should be avoided. Oh, and watch out for fakes sold at flea markets as well.