by Skippman » Sun May 10, 2009 1:00 pm
Call it the march of technology. And you're wrong, not every DVD player can play every DVD nor can every CD player play every CD.
There's several diffrent formats to CD other than Redbook audio (the most common) including mixed mode (Audio CD's w/ extra content) and Super Audio CD (SACD) that might not play properlly in your players.
DVD is the same way. If you tried to play a PAL DVD in your NTSC DVD player it more than likely wouldn't work due to the diffrences in encoding, cadence, and resolution. If you have a player like the ones Oppo makes this wouldn't be an issue for you as they're region free and have the hardware to decode both PAL and NTSC video.
As for your BluRay questions it's pretty simple really. BluRay wasn't a finalized standard until very recently. The "Grace Profile" of BluRay 1.0 was originally intended to be a "proof of concept" profile. But as the format wars heated up many manufacturers rushed to market with thier 1st gen BluRay players. Now that BluRay is a more finalized standard many 1st gen players lack the hardware nessicary to support the Profile 1.1 and 2.0 discs. Look on the back of the disc's case and it should tell you want Profile the disc is mastered in. If it's anything other than Profile 1.0 you won't be able to play it I'm afraid. Since pretty much all newer titles (meaning recently in theaters, not recently released) are using BluRay Profile 2.0 you might want to consider getting a new player such as a PS3 or an Oppo (when it's released).
