type of delivery.All drives come from the factory or in the retail-, or OEM-version.In the first case, the driver will be in a box with a loop, screws and possibly even the "blanks" CD or DVD.OEM box "bonuses" are not - a maximum anti-static bag.At the same time, OEM bit cheaper retail.
installation method.There are internal (internal) and external (external) drives.First designed for installation inside the computer into a 5.25 "bay.
connection method.Internal-drives are connected via two types of connectors: SATA and IDE.According to the specifications, the first version soon, but in the case of the optical drive of this difference is not as important as with hard drives.Therefore, th
e type of connection can be in accordance with existing connectors in your computer and your personal preferences.
External connected to a computer via USB or IEEE1394 (much less likely).Also, external drives almost always require an external power supply.
supported formats and types of drives:
• CD-ROM.It can only read CD.It has long been obsolete.
• CD-RW only reads and writes CD.Too old.
• DVD-combo.Writes CD, reading a DVD.It may be considered obsolete, although sometimes found in the market.
• DVD-RW can read and write both CD, and DVD.Who is the best choice in price and functionality.
• DVD-RW / BD-ROM can read CD, DVD and BD, but records only the first two types of discs.
Speed ​​ drive .The specifications of optical drives and blanks is always a sign of the form "16x."This figure is the maximum read speed of the drive.For CD «base» speed (1X) is 150 KB / s for CD, to DVD - 1,38 MB / s for Blu-Ray - 4,5 MB / s.For maximum speed chase is not necessary - enough for CD and 48x for DVD - 16x, BD - 8x.Faster ingots found on sale infrequently.
Manufacturer.The market is relatively stable, so do not have to choose a super-brand of sky-high price.At the same time, it is not worth saving.