what is this mean

[gekky29]

Duplex Secure's SPTD driver can have a detrimental effect on drive performance.
wat is this mean ?
its an error from ImgBurn

[Digger]

On some systems optical drive performance was reduced with some earlier SPTD versions installed. This shouldn't happen with newer SPTD layer versions anymore, thus it is recommended to update to the latest available version.