Viewing limits & average score on dvd

Question

does anyone know if dvd studio pro 4 has the capability of limiting the number of times a dvd can be viewed once it's burned. for example, via a script can you set a viewing limit of say 25 times and on the 26th time the dvd will not be useable?
also i'm creating an interactive test and would like to know if studio pro will be able to provide avg scores at the end of the test session via a script. plz advise.

Answer 1

You can limit the number times a track or menu is viewed by adding a value to a GPRM each time that portion of the disc is accessed. Another script can be used to check that value. Once it reaches 25 it can no longer allow that portion of the disc to played. The problem is that registers are re-set once you eject a disc so its only possible once a disc starts.
You can determine averages of scores with scripts as well. Lets say you have 10 questions. Each correct answer adds a value to a GPRM. An incorrect answer add NO value. So after the test session you can determine the avg score with a script like:
1. go to 12 if GPRM 0=0
2 go to 13 if GPRM 0=1
3 go to 14 if GPRM 0=2
4 go to 15 if GPRM 0=3
5 go to 16 if GPRM 0=4
6 go to 17 if GPRM 0=5
7 go to 18 if GPRM 0=6
8 go to 19 if GPRM 0=7
9 go to 20 if GPRM 0=8
10 go to 21 if GPRM 0=9
11 go to 22 if GPRM 0=10
12 Jump Menu "no correct answers"
13 Jump Menu "10% correct"
14 Jump Menu "20% correct"
15 Jump Menu "30% correct"
16 Jump Menu "40% correct"
17 Jump Menu "50% correct"
18 Jump Menu "60% correct"
19 Jump Menu "70% correct"
20 Jump Menu "80% correct"
21 Jump Menu "90% correct"
22 Jump Menu "100% correct"
Remember you'll need to design different menus for each percentage correct reading. You can also use Compare option ( "<">=", ect) to determine your percentages. There are different ways to achieve the same thing in scripting - The script above is just how I think
Also Hal Mclean does a much better job at explaining these things so I hope he comes around tonight.