How to slow down my DVD burner to 1x on RecordNow Max

[staxx75]

Ok I have the 1x, 2x etc setting and even if I choose to burn at 1x the program still burns at 2x. This is using Ritek G04 DVD-R on a Sony DRX-510A 1.0F firmware burner. I even tried Sonic's RecordNow DX 6.0 and still when I choose the setting at 1x the disc seems to burn at 2x (i.e. 24 mins for a full 4 gig iso). This is just irritating that a program even though you specify what to do, it has a mind of it's own . Thanks to all the people who reply.