We have presented a high density MUSE videodisc with 60 minutes of playback time per side. We have continued examining the optical pick-up and the disc parameters, and we determined the newly specifications. The optical pick-up using a small packaged visible laser diode and an objective lens with an N.A. of 0.55 was employed. And the main carrier frequency was set to 12.5 MHz. Under these conditions, we obtained the fine played back image, and the SN ratio was 44dB or more.
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