If you are using additional speakers then you may need to register them with your blu-ray player (you can do this from the blu-ray menu.)
Could be nothing more than the Bluray DVD's that you're watching aren't encoded in 5.1 surround.
A DVD player does not have surround sound built into it. You can purchase surround sound speakers and connect them to the DVD player. This will make your movie experience much better.
A home theater system can be as simple or complex as one would like. They generally minimally contain a large TV, BluRay player and surround sound.
Beacaus bluray is newer and they think everybody has a bluray player... eventually it will come on dvd.
A DVD player is a better decision than a BluRay player based on price alone. This type of player is cheaper. A BluRay player may be a better idea because it can also play DVDs and has more advanced features.
No. You need a BluRay player that specifically says it can read 3-D disks
You need a receiver with an HDMI output, such as the Sony STRD series of receivers. Your '5.1 Surround System' sounds either like a surround speaker set with no amplifier, or a system designed for computers. The Sony receivers will amplify passive (non-powered) speakers, but the subwoofer will need to be powered. You will then need to purchase a DVD or Blu-Ray player with an HDMI output. Alternately, you can purchase a Blu-Ray Home Theatre system, which includes the BluRay player and receiver (1 unit), and matching speakers. The Sony BDVE systems are a good place to start.
A DVD player cannot play a BluRay disc. A BluRay player can play both BluRay discs and DVDs.
No, you will need a surround sound receiver or amplifier with 5 speakers and a subwoofer to hear surround sound.
If you already have a Netflix account, you just need to enter your account information on the BluRay player's Netflix menu. If you don't have an account already, you will need to set one up on your computer so that you can get the account information that the BluRay player needs.
The Panasonic SC-BT series (there is no SP-series) are theatre-in-a-box systems with a disc player with built-in amplifier. You don't need a receiver for this. Your Samsung would also have its own amplifier if it has speaker outputs. These two systems wouldn't connect to each other, but you may be able to use the Panasonic's speakers with the Samsung.
No