I am using Swap Magic DVD boot disc to boot up my backup and it won't work. I burned Castlevania-Lament of Innocence with DVD Decrypter ISO Read/Write at 1x. When I try to boot it up, it just gives me pink border? What do I need to do? And I am using Ritek DVD-R media.

If you are properly burning the game, and onto an appropriate medium (I use Memorex 4x DVD-r) then your problem lies in how you are booting the game, when you use the slide card to open the tray, you must use the slide card to CLOSE the tray as well, none of that silly "push the eject button" crap.
it has to be closed manually.
Try That

The game may require the CD/DVD loader.

Ritek blanks are ok but try burning with Nero