Regarding RIPLOCK and LD 1.4 FAST and SLOW firmwares.

Code has already explained this well. Here is a few graphs that i hope will make all this RIPLOCK business a little more easy to understand.

For each of the tests i've used a PRESSED DVD and allowed DVD-Shrink to handle the decryption and transcoding.
The DVD5 (SL) was a 3.8 GIG video file. (no transcoding required)
The DVD9 (DL) was a 7.4 GIG video file. (transcoding required)

Pic 1 is LD V1.4 FAST with a DVD5 (SL pressed disc) (riplock removed)
This started at around 5X and reached about 10X. On a full disc this would have been faster, but clearly shows riplock removed does work.

Pic 2 is LD V1.4 SLOW with the same DVD5 (SL pressed disc) (riplock enabled)
This started at 2X and finished at about 3.4X
The purpose of the having the SLOW version of the firmware was to cut down the noise levels for DVD playback on your PC

Pic 3 is LD V1.4 FAST with a DVD9 (DL pressed disc) (riplock removed)
This starts at about 3.2X and finished at about 4X. This is a limitation of the ND-3500 which will only read a DL disc (pressed or otherwise) at a max of 4 - 5X

Pic 4 is LD V1.4 SLOW with the same DVD9 (DL pressed disc) (riplock enabled)
This starts at 2X and finished at 4X

As you can see the only difference is the start speed, with V1.4 FAST starting the rip faster.

Hopefully this clears things up regarding RIPLOCK