dbminter Posted July 16, 2015 Posted July 16, 2015 I created a DVD Video image with a VIDEO_TS that was just under a DVD-5 but I added some folders and files to the root directory that made it about 5.5 GB total. The image file created was 8 GB. I know this extra 2.5 GB is Padding, but I was wondering what this Padding is. Why is it necessary?
LIGHTNING UK! Posted July 17, 2015 Posted July 17, 2015 Were you prompted to pick a layer break position?
dbminter Posted July 17, 2015 Author Posted July 17, 2015 I was, though I'm not entirely sure why. I think the VIDEO_TS was small enough to fit on one layer. So, I don't know why it wasn't on Layer 0 and the 800 MB of files and folders wasn't on Layer 1. So, setting a layer break triggers the creation of padding? How much padding is chosen/how is this determined?
LIGHTNING UK! Posted July 17, 2015 Posted July 17, 2015 It adds as much padding as is required by the LB position you select. It defaults to putting DVD video data before other data, so I can only assume it didn't all fit on the first layer and that's why you had to pick a LB position.
dbminter Posted July 17, 2015 Author Posted July 17, 2015 Does the padding fill up the remaining space so Layer 1 is filled to capacity? If so, why? Which of the 2 layers is the smaller one? 0 or 1? If 0 is the smaller layer, then that may be why the VIDEO_TS didn't fit in Layer 0. It fit on a DVD-5, but I know that a DVD-9 is not, as the name implies, exactly twice the size of a DVD-5.
LIGHTNING UK! Posted July 17, 2015 Posted July 17, 2015 The padding comes before any data. It's there to shift the data along so the LB you've chosen is physically possible - as L0 must be >= L1 in size. It would be easier to explain if you could get a screenshot of the LB selection box (if you still have the source folders handy) and post the log from the burn
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