I'm assuming you mean that you have
1Click 4.2.9.1 and
AnyDVD 5.5.1.1. You might try falling back to the 1Click 4.2.1.5 combo which includes
CopyToDVD 3.0.56. There seems to be alot of problems with the new version either not getting decrypted, or creating compressed files too large for the blank DVD...
Visit the 1Click user forums at
http://www.dvdrextreme.com/vb/ and you'll see all the posts about this.