The word guenon comes from the French word for monkey. Monkeys in the guenon group are some of the most colorful, graceful, and lively in Africa. Guenons are best known for their striking color patterns, such as hip stripes, brow bands, or a white nose spot or band. Facial adornments can also include a throat ruff, beard, or mustache.
1 Cost â This is one of the most important differences between a Blu-ray and a DVD disc. 2  The cost of Blu-ray disc is double the amount as that of a DVD disc. 3  However, experts think that the Blu-ray discs will be much cheaper in future as recession had a high impact on the disc sales.
However, a blue ray reader can read or write on any of the types of discs and a DVD reader or writer can read or write on either CD or DVD. CDs, DVDs and BluRay discs all work in similar ways. The primary difference is the data density on each disc. CD is the lowest density. A DVD can store several times the amount of data on the same surface area and BluRay will store several time the amount of a DVD.