Dreamcast reading CD but not Copy of SA1

[/dreamcast]

Hello, I am a new Dreamcast owner and I bought mine from a very reputable seller for a normal price. I have a disc for Sonic Adventure 1 and when I put it in the Dreamcast could not read it. It would tell me to insert a disc and when I did it would say it was checking it, but after a while, the checking text would go away. It seems like it can't register the disc once it reads it, and it won't go past the startup screen if I start it with the disc in. I thought my lasers were fried but I put in a CD and it can read and play the audio from it just fine, but when I called a local game store they said it could be reading audio and not video. Is there any way I can test the video without a real Dreamcast disc? Thank you for reading.

(P.S I do not want to get a GDemu at all I would replace the laser if it came down to it)
submitted by /u/EggKyodai
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Source: https://www.reddit.com/r/dreamcast/comm ... py_of_sa1/