Many laptops do not come with an optical drive that writes or rewrites DVDs, which requires interested users to purchase a separate DVD rewriter or burner. Purchasing an external one presents the more user-friendly option, as it only requires a USB cable to connect to a laptop.
When considering external models, look for one with 2 MB buffer and USB 3.0 rather than 2.0 for faster data transfer between the laptop and the unit. Consider the write speeds as well, which may reach 24x for CD-R discs and 8x for DVD-R discs. Furthermore, models that have dual layer compatibility are more versatile, offering users additional burn options. For users who plan to carry the DVD rewriter with them to work or elsewhere, a slim, compact design works well.