DVD

Digital Versatile Disc or simply as DVD is an optic disc storage form that has been recommended as one of the new ways of storing digital data. This is because of its simple looks but rather complex production. The Digital Versatile Disc was first manufactured in 1995, and since then it has experienced many modifications, both in size and memory. Because of its portability and flexibility of data handling, it has been mainly used to store all forms of digital data. The first versions of Digital Versatile Disc were one-time recordables, but with recent renovations,that has changed and we currently have rewritable DVDs. To read a DVD, a computer optic device, a DVD reader or VCR devices must be used. For proper reading, a standard DVD laser of 650nm is recommended.

There are mainly five types of recordable versions of Digital Versatile Disc; DVD-R, DVD-RW, DVD+R, DVD+RW and DVD-RAM. For the five DVD-R and DVD+R are one-time record CDs, that means once data has been recorded on them then no editing or deleting can be done. The other three; DVD-RAM, DVD-RW and DVD+RW, can be written data severally and editing can also be done. It's therefore advisable to first confirm which type of Digital Versatile Disc your device can handle before purchasing one, as different DVDs are read differently and on different speeds.

In terms of memory storage, a normal Digital Versatile Disc will carry up to 4.7 GB, but with rising demand for more memory, some have been made to carry up to or more than 17.08 GB. It's also important to know the type of DVD laser your device has, low lasers will not be of any good when dealing with large memory. One more thing, we all love cheap, but when it comes to DVDs, the cheaper it is the less worthy it is.