• toynbee@lemmy.world
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        2 months ago

        I thought the disks would shatter if spun much above 42x …

        But I was told that many moons ago so maybe my information is outdated. Or maybe it was just never accurate.

        Mulaney "Who's to say?"

        • SCmSTR@lemmy.blahaj.zone
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          2 months ago

          I mean, I think technically the “x” is the read speed, and not necessarily indicative of what the maximum RPM is.

          • toynbee@lemmy.world
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            2 months ago

            Ah, I was always told that ##x was how many times faster than some classic model of cd drive the disk was spun.

            • zebidiah@lemmy.ca
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              2 months ago

              I always thought listening to music was 1x = 76 minutes, so a 4x cd burner would burn a disc in like 4 minutes…

              • toynbee@lemmy.world
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                2 months ago

                Based on a few things, we were both right. Primarily I’m going to reference this (which corroborates what you said, except it claims 74 minutes):

                https://en.wikipedia.org/wiki/Optical_storage_media_writing_and_reading_speed

                Something called “Ask Leo” does say there’s a high risk of a disk shattering when spun above 48x, which is apparently equivalent to 24000 RPM. However, I can’t vouch for the credibility of this site any more than I can for the person who originally made that claim to me (except that I think it was my dad and he was usually pretty dependable).

                https://askleo.com/what_does_the_x_in_a_48x_speed_cdrom_mean/

                Apparently Mythbusters demonstrated that a disk will shatter at 30000 RPM but, as sometimes happens, their methodology was criticized. This, it seems, is because they spun the disk on a Dremel rather than in a more realistic environment.