ChristopherDAC
Senior HTF Member
- Joined
- Feb 18, 2004
- Messages
- 3,729
- Real Name
- AE5VI
Francis, I have to ask: Do you understand what these terms you're using -- "firmware", "analog", "digital", &c. -- really mean? I ask because your use of them is very confusing to me!
For instance: all DVD players are digital. That's what that first "D" stands for, no matter whom you listen to. In fact, there's no totally analog video disc system out there, unless maybe it's TeD. LaserDisc, Selectavision CED, and VHD all used analog encoding for audio and video, but they all also had digital logic circuits to control the players, and digital codes embedded in the video stream to interact with those circuits. In those cases, however, the "control" in question involved normal user functions such as audio-track selection and Random Access. LaserDisc and VHD both added CD-type Digital audio later on, and LD even implemented Dolby Digital AC-3 and dts Zeta audio formats in the middle '90s.
There's nothing analog about a DVD player at all, except for the headend circuitry around the optical head, and the audio/video ouptuts -- and not even all of those, if you've got HDMI, or DVI, or SDI video out, and TosLink or coax digital audio output.
For instance: all DVD players are digital. That's what that first "D" stands for, no matter whom you listen to. In fact, there's no totally analog video disc system out there, unless maybe it's TeD. LaserDisc, Selectavision CED, and VHD all used analog encoding for audio and video, but they all also had digital logic circuits to control the players, and digital codes embedded in the video stream to interact with those circuits. In those cases, however, the "control" in question involved normal user functions such as audio-track selection and Random Access. LaserDisc and VHD both added CD-type Digital audio later on, and LD even implemented Dolby Digital AC-3 and dts Zeta audio formats in the middle '90s.
There's nothing analog about a DVD player at all, except for the headend circuitry around the optical head, and the audio/video ouptuts -- and not even all of those, if you've got HDMI, or DVI, or SDI video out, and TosLink or coax digital audio output.