Well, I have no axe to grind, and I agree that things should work 'out of the box', but there are some reasons why PDVD may be having problems.
First, consider a BR dedicated player. The manufacturer has total control over the hardware and the software, the only thing out of his control is the actual recording technology, coding technology and container choice (coded video and audio can use a number of different codecs and are multiplexed together into a number of possible 'containers') - so a pretty tall order for the manufacturer.
Now, consider PDVD. The software is produced by CyberLink, using a number of possible codecs for the unpacking of the containers and relying on the hardware to actually give back clear error-free digital bit-streams along with all the error checking bits etc. Believe me, not all hardware is equal and may handle their own errors differently. At the same time, CL have the same production out-of-control as the HW manufacturer to contend with.
These things will settle down as time goes by, but at the moment the recording technology used by the different production houses is a variable, as is the codec that they use. You may get some idea of the jungle in which CL are operating by reading at this link
Blu-Ray , scroll down to 'Software Standards'.
I am a retired engineer/Uni prof/mathematician and have absolutely nothing to do with CL and am a most vocal critic of the unforgiveable errors they make in some other software. All my BR discs have played fine, but I am only talking a few tens of BR disks, not hundreds
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