In order to check the Samsung SH-W163A's DL writing quality, we used the LiteOn SOHD-167T and the Plextor PX-716A drives, to scan the burned media.

Traxdata DVD+R DL 2.4X @ 2.4X

Even though according to Plextools, the reported quality is not that bad, CD-Speed reports bad quality, were in the layer change, quite a few drops of speed are present.

Verbatim DVD+R DL 8X @ 8X

Same performance with the Traxdata media. Once more, according to Plextools, the quality is good, were CD-Speed results differ.

Verbatim DVD-R DL 4X @ 4X

Same results as with the other two DL media.

- Summary

Average to bad quality with all media. Once more, a firmware upgrade addressing these issues would be most welcome.