Here is macrovision signal in action.
The বছর is 1983. In 1983, A San Francisco security company launched. It was called Macrovision. Macrovision was created for প্রথমপাতা Video (Prerecorded Betamaxs, VHS, Laserdiscs, DVDs, and Blu-Rays) to prevent viewers from copying it. আপনি rented a Betamax tape from Blockbuster Video and আপনি made a copy on a blank Betamax tape but the screen suddenly scrambles. Well, That's the sign of Macrovision. They are there to prevent আপনি from copying it. Macrovision signal is on the tape itself. If আপনি want to know if the Betamax tape is copy-protected, Here is how! I have the oscilloscope. The signal will appear on the clear pulps part on the scope. It cause the screen to scramble and go crazy. On modern Betamax recorders and on DVD Recorders, It just stops the recording and gives আপনি the blue screen of death error that reads: "RECORDING ERROR!: This program is not allowed to be recorded!"
The Cotton Club was the first movie to have a Home Video release to be copy-protection.
A pop up error blue screen of death to appear when a modern Betamax VCR and/or a DVD recorder is detected by the Macrovision signal.
