Lenovo DVD+RW Discs, 1-4 Speed, 4.7GB, Blank Discs, Erasable, Reusable, Archive Series, 10-Pack in Cartridge, Data Backup, Stable Recording

Actual storage capacity of storage products such as USB drives, memory cards, hard drives, and discs may be slightly less than the labeled capacity due to manufacturer algorithms. The discrepancy in capacity calculation between manufacturer standards (1GB=1,000MB) and operating system algorithms (1GB=1.024MB) is a common industry practice. The labeled recording speed on discs represents theoretical maximum speeds (e.g., 1-6X means up to 16X), and actual speeds may vary due to factors like laser head aging, computer settings, compatibility, and support limitations. It is recommended not to always record at the maximum speed for better quality and success rate.