All the checkboxes on this page control the protection removal engine in Passkey. In most cases, you should leave all boxes checked. Certain features and protection schemes on some DVDs may produce a better backup with a box or boxes unchecked.
Remove CSS, RC, RCE, APS, UOPs, structure protection
Make sure that 'Remove CSS, RC, RCE, APS, UOPs, and structure protection' are enabled. The names are different copy protection systems and if you don't remove them - then the DVD will still be copy protected and can not be copied.
To remove RCE, specify the disc's region code
To remove the 'RCE - Region Code Enhancement', you also need to choose the right region code as listed on the original DVD package using the drop down selector.
Remove layer break
Check this box if you are compressing a DVD-9 size content to fit on a DVD-5 blank disc in Main Movie, Full Disc, Customize, Customize Split or Merge modes. Clone mode will ignore this setting and preserve the original layer break.