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two project files
https://www.videoproductions.com.au/dvd-lab/DAL.zip

what exact steps do you so to get to this error?

what is your OS?

DVD Lab Pro fails to calculate menu size or first play clips when calculating suitable layer break region I never set a layer break in DLP but simply make sure I have an unlinked (dummy) chapter point near the start of the blue area and before the blue area to allow for varying menu sizes, eg. motio...

I never tried the standard version, is it needed in your case? if you have the pro version installed and registered, it should be able to open files from a standard version? but I am only guessing when installing the pro version, it asks for serial details, I am not aware of entering the serial any ...

I am not familiar with PS version, what does it stand for?

I looked around at mediachance.com and could not find any PS version

try on a DVD player that has not seen your DVD before

many players have a function that remembers what you already viewed

also, you should shift the first play movie to position1 and not 39 (change order of items)
https://www.videoproductions.com.au/dvd ... movies.gif

no, Nero can't make great DVD DVD Lab Pro makes the best ones, they play in all DVD and Blu-ray players if burned the correct way with ImgBurn or Nero Burning Rom also, be sure you burn to DVD-R and never to DVD+R for single layer disks and never burn at max speed, if disk is rated at 16x burn at 8x...

keep in mind that VLC player is not a DVD player

wheras PowerDVD and Total Media Theater (no longer for sale) are

if your DVD has any issue, a Blu-ray or DVD player will be the first to complain and fail

does the DVD work normal with a DVD player or Blu-ray player?

it could be just an issue with your VLC player. I don't use it

for testing DVD menus prior to burning, I use Total Media Theatre

Power DVD will also work

sounds like one of your burners is faulty
I use Nero Burning Rom 12 daily to burn multiple copies, no issues

on another PC I have Burning Rom 16 and it also works fine

make sure you choose the "DVD Video" Template for correct DVD