We are going to consume one general parameter register GPRM1 for this purpose. The virtual commands can be typed in as following. For more complex virtual commands, you can use the DVD Virtual Command Generator included with this guide.

Mov GPRM1,1
(Initialize the starting number from 1)

Rnd GPRM1,5
(Generate a random number from 1 to 5 in GPRM1)

Add GPRM1,2
(We want to skip the first two slide shows)

If (GPRM1 == 4) LinkPGCN 4
(If GPRM1 is 4, play back the slide show 3.2)

If (GPRM1 == 5) LinkPGCN 5
(If GPRM1 is 5, play back the slide show 3.3)

If (GPRM1 == 6) LinkPGCN 6
(If GPRM1 is 6, play back the slide show 3.4)

If (GPRM1 == 7) LinkPGCN 7
(If GPRM1 is 7, play back the slide show 3.5)

Any other value in GPRM1 initiates the playback of the slide show 3.1 (PGC 3). The following screen shot shows the required virtual commands.

The following screen is displayed to show the customized pre-commands. If you want to make changes or add more commands, click the Edit... button.

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