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I'm trying to rip a specific DVD and I get this error at the start of the log:

Error 'Scsi error - ILLEGAL REQUEST:READ OF SCRAMBLED SECTOR WITHOUT AUTHENTICATION' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.03 MOBL47A4620' at offset '1048576'

I'm still able to rip it. should I be worried?

I've gotten an error like that at the beginning of some DVDs, but they seem to rip fine and the resulting output is okay. I haven't been worrying about it.