• SCmSTR@lemmy.blahaj.zone
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    13 days 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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      13 days 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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        13 days 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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          13 days 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 However, I can’t vouch for the credibility of this site any more than I can for the person who originally made that claim to me (except that I think it was my dad and he was usually pretty dependable).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.