Most optical drives today are combo CD/DVD drives that support DVDs and all the CD formats: CD audio, CD-ROM, CD-R and CD-RW. The speeds of the drives are rated by their CD-ROM and DVD transfer rates.

The Melliful External DVD Drive is currently on sale for just $17 at Walmart. That's $23 off, as it usually costs $39, and it's the lowest price I could find for this CD/DVD reader-writer.

High-capacity external hard drive featuring hardware encryption and backup software, perfect for secure storage and data protection.